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American-led intervention in the Syrian civil war

American-led intervention in the Syrian civil war
Part of Operation Inherent Resolve, the international military intervention against the Islamic State, and the foreign involvement in the Syrian civil war


Top: Territorial map of the Syrian Civil War in September 2014
Bottom: Current territorial map of the Syrian Civil War

     Syrian Government Army      Syrian National Army & others      Syrian Democratic Forces      Tahrir al-Sham      ISIL
(For a more detailed, up-to-date, interactive map, see here.)
Date22 September 2014 – present
(8 years, 7 months, 3 weeks and 4 days)
Location
Result
Belligerents

CJTF–OIR
Air war and ground forces

Former participants:

Local ground forces
Syrian Democratic Forces

Revolutionary Commando Army
Limited involvement
 Iraqi Kurdistan (Only against ISIL)

 Islamic State of Iraq and the Levant[18]
[19][20][21]


al-Qaeda

Turkistan Islamic Party[31]


Islamic Front (2013-2015)
Syrian Salvation Government (2017-present)

Syrian Arab Republic[35]
 Russia
 Iran (limited aircraft shoot downs)[36][37]
Supported by:

Kata'ib Hezbollah (limited 2019 and 2021 strikes)
Commanders and leaders

Joe Biden (since 20 January 2021)
Donald Trump (until 20 January 2021)
Barack Obama (until 20 January 2017)
Chuck Hagel (until 2015)
Ashton Carter (until 2017)
James Mattis (until 2019)
Patrick M. Shanahan (until 23 June 2019)
Mark Esper (until 9 November 2020)
Lloyd Austin (since 22 January 2021)
Mette Frederiksen (since 27 June 2019)
Lars Løkke Rasmussen (until 27 June 2019)
Helle Thorning-Schmidt
Mark Rutte
Rishi Sunak (since 25 October 2022)
Liz Truss (Until 25 October 2022)
Boris Johnson (until 6 September 2022)
Theresa May (until 24 July 2019)
David Cameron (until 13 July 2016)
Stephen Hillier
Scott Morrison (since 24 August 2018)
Malcolm Turnbull (until 24 August 2018)
Tony Abbott (until 15 September 2015)
Trevor Jones
David Johnston
Emmanuel Macron (since 14 May 2017)
François Hollande (until 14 May 2017)
Jean-Yves Le Drian
Pierre de Villiers
King Abdullah II
Abdullah Ensour
King Salman
King Abdullah († 2015)
Mohammad bin Salman
King Mohammed VI
Abdelilah Benkirane
Bouchaib Arroub
Mohamed bin Zayed (since 14 May 2022)
Khalifa Al Nahyan (until 13 May 2022)
Hamad bin Isa Al Khalifa
Tamim Al Thani
Hamad bin Ali Al Attiyah
Salih Muslim Muhammad
Masoud Barzani
Olaf Scholz (until January 2022)
Angela Merkel (until 8 December 2021)
Annegret Kramp-Karrenbauer
Volker Wieker
Stephen Harper (until November 2015)
Justin Trudeau (until February 2016)
Thomas J. Lawson (until February 2016)

Yvan Blondin (until February 2016)

Abu Ibrahim al-Hashimi al-Qurashi  (Leader)
Abu Bakr al-Baghdadi  (Leader)[49][50]
Abu Alaa Afri 
(Deputy Leader of ISIL)[51]
Abu Ayman al-Iraqi  (Head of Military Shura)[52][53]
Abu Suleiman  (Replacement Military Chief)[53]
Abu Omar al-Shishani  (Chief commander in Syria) [54][55][56][57]


Abu Khayr al-Masri  (al-Qaeda deputy leader)[58][59]
Abu Humam al-Shami (al-Nusra Military Chief and subsequent leader of Hurras al-Din)[60]
Abu Mohammad al-Julani (Emir of Al-Nusra front (2012–2016))
Abu Hajer al-Homsi  (top al-Nusra military commander)[61]
Abu Firas al-Suri  (al-Nusra Spokesman)[62][63]
Abu Muhammed al Ansari 
(al-Nusra Emir of the Idlib Province)
Ahmad Salama Mabruk  (al-Nusra senior commander)[64]
Muhsin al-Fadhli  (Leader of Khorasan)[65][66][67]
Sanafi al-Nasr [68]
David Drugeon [66][69]
Said Arif  (Jund al-Aqsa Military Chief)[28]
Abu Omar al-Turkistani  (TIP and al-Nusra military commander)[31]


Abu Yahia al-Hamawi (Emir of Ahrar al-Sham (2015–2017))[70]
Abu Jaber Shaykh (Emir of Ahrar al-Sham (2014-2015); Emir of Tahrir al-Sham (2017))[71][72]

Abu Mohammad al-Julani (Emir of Tahrir al-Sham (2017–present))
Bashar al-Assad
Vladimir Putin
Strength

Coalition forces: Coalition forces-air

Bahrain:
France:
Germany:
Jordan:
Saudi Arabia:
United Arab Emirates:
United Kingdom:
  • 3 Surface Warships
  • 2 Submarines
  • 15 Eurofighter Typhoons
  • 9 Panavia Tornado Aircraft
  • 10 MQ-9 Reaper Drones
  • 1 ISR Aircraft
  • 3 RC-135[83]
  • MQ-9 Reaper [84]
Denmark
  • 7 F-16s in Iraq and Syria (pulled out)[85]
  • 1 frigate[86]
Netherlands:

Coalition forces-ground

Iraqi Kurdistan:
United States:
France:
  • ~200 special forces[92]

Local forces

YPG:
Free Syrian Army:
  • 60,000 (May 2015 estimate)[94]

Islamic State of Iraq and the Levant:


al-Qaeda:


Islamic Front:

Syrian Salvation Government:

  • Tahrir al-Sham: 31,000+ (2017)[107] 20,000–30,000 (2018)[108]

Syrian Arab Republic:

Casualties and losses

United States:
10 servicemen killed[110][111][112]
17 Government contractors killed[112]
1 V-22 Osprey crashed[113]
5 combat drones lost[114][115][116]
Jordan:
1 pilot executed[117]
1 F-16 crashed[118]
2 drones lost[119]
United Kingdom:
1 serviceman killed[120]
2 SAS operators wounded[121]

France:
1 serviceman killed[122]

Islamic State of Iraq and the Levant:
At least 9,158 killed [123]
(per Syrian Observatory for Human Rights (SOHR))


al-Qaeda:


Islamic Front:

  • Ahrar al-Sham:

3 killed (per SOHR)[123][126][127]

  • Jaysh al-Sunna:

10 killed (per SOHR)[123] Syrian Salvation Government:

  • Tahrir al-Sham:
    6 killed[128]

Syrian Arab Republic:
169 soldiers and militiamen killed (per SOHR)[123]
Up to 23 Russian paramilitary forces killed (per SOHR)[129][130]
3 tanks destroyed[131][132][133]
10+ aircraft destroyed[134][135]
1 SAM battery destroyed[136]

2 drones lost[137][138]
3,847 civilians killed by Coalition airstrikes in Syria per SOHR)[139][123]
[140] 6,100+ civilians killed by ISIL in Syria (and up to 3200 missing prisoners of ISIL) per SOHR[141]
Over 420,000 civilians displaced or fled to other countries[142][143]
Number of militants killed possibly higher, due to them covering up their losses.[144]

The American-led intervention in the Syrian Civil War refers to the American-led support of Syrian rebels and the Syrian Democratic Forces (SDF) during the course of the Syrian civil war, including Operation Inherent Resolve, the active military operation led by the United States, and involving the militaries of the United Kingdom, France, Jordan, Turkey, Canada, Australia, and others against the Islamic State (IS) and al-Nusra Front since 2014. Beginning in 2017–18, the U.S. and its partners have also targeted the Syrian government and its allies via airstrikes and aircraft shoot-downs, mainly in defense of either the SDF or the Revolutionary Commando Army opposition group based in al-Tanf.

Shortly after the civil war broke out in 2011, the U.S. initially supplied the rebels of the Free Syrian Army with non-lethal aid (e.g., food rations and pickup trucks), but quickly began providing training, money, and intelligence to selected Syrian rebel commanders. At least two U.S. programs attempted to assist the Syrian rebels, including a 2014 Pentagon program that planned to train and equip 15,000 rebels to fight the IS, which was canceled in 2015 after spending $500 million and producing only a few dozen fighters.[145] A simultaneous $1 billion covert program called Timber Sycamore conducted by the Central Intelligence Agency (CIA) aimed at fighting Syrian President Bashar al-Assad was more successful, but was decimated by Russian bombing, and canceled in mid-2017 by the Trump administration.[145] The Obama administration began surveillance missions on Islamic State positions in Syria in September 2014.[146] On 22 September 2014, the U.S., Bahrain, Jordan, Qatar, Saudi Arabia, and the United Arab Emirates (UAE) began to attack ISIL forces inside Syria,[18][147] as well as the Khorasan group in the Idlib Governorate west of Aleppo, and the al-Nusra Front around Raqqa,[24][148] as part of the international military intervention against ISIL.

The U.S. missile strike on Shayrat Airbase on 7 April 2017 was the first time the U.S. deliberately attacked Syrian government forces,[149] and marked the start of a series of direct military actions by U.S. forces against the Syrian government and its allies that occurred during the periods of May–June 2017 and February 2018. In mid-January 2018, the Trump administration indicated its intention to maintain an open-ended military presence in Syria to counter Iran's influence and oust Syrian president Bashar al-Assad.[150] In early September 2018, the U.S. began implementing a new strategy that sought to indefinitely extend its military effort, launching a major diplomatic push to achieve American objectives in Syria.[151] However, on 19 December, President Trump unilaterally ordered the withdrawal of the 2,000–2,500 American ground troops in Syria, which was initially set to take place in a 90-day period, and to be completed in 2019.[152][153][154] With proliferating concerns over a potential power vacuum, the U.S. announced on 22 February 2019 that instead of a total withdrawal, a contingency force of around 400 American troops would remain garrisoned in Syria indefinitely, and that their withdrawal would be gradual and conditions-based, marking a return to a policy of open-ended American military presence in the country.[155][156]

In 2019, the coalition saw decisive results in its intervention against the IS; the terror group lost its last remaining territory in Syria during the Battle of Baghuz Fawqani[157] and its leader Abu Bakr al-Baghdadi died during a U.S. special forces raid in Barisha, Idlib in October 2019.[158] The Trump administration ordered all U.S. forces to withdraw from Rojava in early October ahead of a Turkish incursion into the region, a controversial move widely seen as a reneging of the U.S.'s alliance with the SDF in favor of NATO ally Turkey.[159] The decision was however partially reversed by November 2019 as U.S. troops instead repositioned to eastern Syria, reinforcing their presence in the al-Hasakah and Deir ez-Zor governorates, with the subordinate mission of securing SDF-controlled oil and gas infrastructure from the ISIL insurgency and the Syrian government.[160]

On 23 November 2019, the head of U.S. Central Command stated there was no "end date" on the U.S.'s intervention in Syria.[161] As of February 2021, there are around 900 U.S. soldiers operating in Syria, according to the U.S. Department of Defense.[46]

Background

United States diplomatic cables leaked by WikiLeaks have been seen as showing that regime change in Syria may have been a covert foreign policy goal of the U.S. government in the years leading up to the civil war, even during the period when President Barack Obama was publicly engaging with Syria's Bashar Al-Assad. A 2006 memorandum by U.S. diplomat William Roebuck of the embassy in Damascus stated:

We believe Bashar's weaknesses are in how he chooses to react to looming issues, both perceived and real, such as...the potential threat to the regime from the increasing presence of transiting Islamist extremists. This cable summarizes our assessment of these vulnerabilities and suggests that there may be actions, statements and signals that the USG can send that will improve the likelihood of such opportunities arising. These proposals will need to be fleshed out and converted into real actions and we need to be ready to move quickly to take advantage of such opportunities. Many of our suggestions underline using Public Diplomacy and more indirect means to send messages that influence the inner circle.

According to Seymour Hersh and activist Robert Naiman, Roebuck, who went on to be charge d'affairs of the Libyan embassy under Obama, also considered the advantages of promoting religious sectarianism in Syria.[162][163]

Following the start of the Arab Spring in 2011, protests in Syria against the Assad regime were violently suppressed and a civil war began.[164] By 2012 there were several armed opposition groups operating in the country, including the Free Syrian Army, formed in July 2011 by officers who defected from the Syrian Armed Forces. In 2012, the al-Nusra Front was established by the Islamic State of Iraq as the official branch of al-Qaeda in Syria. The al-Nusra Front was eclipsed by its own creator, and al-Qaeda severed its ties to the Islamic State of Iraq and the Levant in February 2014, after an eight-month power struggle.[165]

Pre-coalition arming and training of the Syrian opposition

At the direction of U.S. President Barack Obama, the Central Intelligence Agency (CIA) was put in charge of operations worth about $1 billion annually to arm anti-government forces in Syria,[166][167][168][169] an operation which formally began in 2013, more than two years after the start of the civil war in 2011. Prior to 2013, the CIA only supplied certain rebel groups of the Free Syrian Army with non-lethal aid, but later began providing training, funding, and intelligence to selected rebel commanders.[170][171][172] Although a former intelligence adviser who spoke to journalist Seymour Hersh claimed the CIA had been facilitating the flow of arms from Libya to Syria in collaboration with "the UK [United Kingdom], Saudi Arabia and Qatar" since 2012 or 2011,[173] the first confirmed CIA weapons arrived in Spring 2014: "There were just a handful, delivered to only one rebel group carefully vetted by the CIA". The group, Harakat Hazm, or the Steadfast Movement, showed off the new weapons system by posting the first successful strike on YouTube in April.[174] Another of the groups being vetted was the Islamist Army of Mujahedeen, formed in January 2014 specifically to combat ISIL.[174][175] However, there were indications that the Army of Mujahedeen was still being vetted in September 2014.[176]

In addition to the covert CIA program,[177] on 17 September 2014, the U.S. House of Representatives voted to authorize the executive branch to overtly train and equip Syrian rebels against ISIL forces, at a cost of $500 million.[178][179][180]

July 2014 rescue mission

Following the abduction of a number of foreigners in Syria, on 4 July 2014, the U.S. carried out an operation to rescue foreign hostages being held by ISIL. U.S. airstrikes were conducted against an ISIL military base known as the "Osama bin Laden Camp" while at the same time, two dozen U.S. special forces soldiers parachuted from helicopters near an ISIL-held building, thought to be for high-value prisoners. No prisoners were found in the building and the soldiers were quickly engaged by ISIL forces dispatched from Raqqa, which started a three-hour firefight.[181] U.S. forces concluded that the hostages were no longer at the site and abandoned the rescue attempt. At least five ISIL fighters were killed and one U.S. soldier was wounded. Jordanian forces were also reportedly involved in the operation, with one Jordanian soldier reportedly wounded, but Jordanian involvement was not confirmed. Later on, it was reported that the hostages had been moved 24 hours before the attempted rescue.[181] Following the mission, it remained unclear whether the operation failed due to bad intelligence or whether ISIL forces were alerted in advance of the mission.[182]

In the aftermath of the rescue mission, and purportedly as a response to airstrikes in Iraq, ISIL beheaded three hostages over a one-month period: Americans James Foley[181] and Steven Sotloff on 19 August and 2 September respectively,[citation needed] and Briton David Haines on 13 September.[183]

Surveillance flights over Syria

On 26 August 2014, the U.S. began conducting overt surveillance flights, including drones, over Syria to gather intelligence on ISIL targets. The flights began gathering intelligence that would aid future airstrikes even though airstrikes were not yet authorized at that point.[184] No approval was sought from the Assad government for flights entering Syrian airspace.[185]

U.S.-led coalition against ISIL

The United States had since 2014 led efforts to establish a global coalition to counter ISIL.[186]

On 5 September, 15 September[187] and 3 December 2014, various sets of countries came together to discuss concerted action against ISIL. Present at all three meetings were the United States, United Kingdom, France, Germany, Italy, Canada, Turkey and Denmark.

The coalition of 5 September (10 countries) decided to support anti-ISIL forces in Iraq and Syria.[188] On 10 September 2014, U.S. president Barack Obama announced a ″comprehensive″ strategy to counter ISIL that ″in concert with coalition partners <...> will defeat ISIL and deny them safe haven″.[189]

The coalition of 3 December 2014 (sixty countries) that styled itself as the Global Coalition to Counter the Islamic State of Iraq and the Levant (ISIL)[190] agreed on a many-sided strategy against ISIL, including cutting off ISIL's financing and funding and exposing ISIL's true nature.[190] As of March 2015, the U.S.-led coalition comprised over sixty countries, that contributed in various ways to the effort.[186]

Support for Kurdish-led ground forces

As the Siege of Kobanî continued there were growing calls to also arm the YPG, also known as the People's Protection Units, a Kurdish fighting force in Syria heavily involved in the defense of Kobanî.[191] On 20 October 2014, the Turkish foreign minister, Mevlüt Çavuşoğlu announced that the Turkish government would be allowing Peshmerga from the Iraqi Kurdistan Regional Government to cross their border into Kobanî to support Kurdish fighters.[192] The change in policy came after the Turkish government had refused to allow Kurdish fighters and supplies to pass through the border to YPG units in Kobanî, as it viewed the YPG as an offshoot of the PKK.[193] On 28 October, Peshmerga from the Iraqi Kurdistan Regional Government departed Erbil to travel to Turkey and eventually to Kobanî.[194] A total of 152 soldiers were deployed starting with forty vehicles carrying weapons, artillery, and machine guns, along with 80 Peshmerga forces, who crossed the border into Turkey by land with the heavy weapons and then drove to the border near Kobanî.[194] The other 72 soldiers in the contingent flew to Turkey and rejoined the rest of the contingent on 29 October.[194] By the start of November, 152 Kurdish Peshmerga from Iraq and 50 Free Syrian Army fighters had crossed the border into Kobanî with heavy weapons, small arms, and ammunition.[16][87]

On 20 October 2014, the United States began airdropping supplies to Syrian Kurdish forces, including the YPG, that were besieging ISIL-controlled Kobanî.[195] Prior to 20 October, the United States and its anti-ISIL coalition partners in Syria had not provided any supplies to Kurdish forces in their fight against the jihadist group.[195] Much of the reason for the U.S. airdropping supplies was due to the Turkish government's refusal to allow supplies to pass through their border into Kobanî. The U.S. specifically airdropped weapons, ammunition, and medical supplies supplied by Iraqi Kurdistan intended to supply the Kurdish forces in Syria.[195] On 21 October, a video was released by ISIL showing what it claimed was a bundle of airdropped small arms, ammunition, and other supplies from the United States. The Pentagon said it was analyzing the video and could not at the time confirm whether the video was authentic but that the materials were similar; the video would subsequently be analyzed by the Department of Defense to verify its authenticity.[196] On 22 October, the Pentagon confirmed that one of its airdrops had been intercepted by ISIL elements but downplayed the incident, saying that it most likely would not give ISIL any real advantage in their overall operations.[197]

Coalition arming and training of the Syrian opposition

In October 2014, the Turkish government agreed to help train and equip some moderate Syrian rebels in Turkey.[198] By January 2015, the United States was set to send 400 troops and hundreds of support staff to countries neighboring Syria in order to train 5,000 opposition soldiers a year for the next three years.[199] The countries taking part in the train-and-equip program were to include Jordan, Qatar and Saudi Arabia, as well as Turkey.[200] The groups that were expected to be armed and trained by the U.S. government included fighters from the Free Syrian Army.[201] The Pentagon confirmed that it had selected 1,200 Syrian opposition members to begin training in March 2015, with 3,000 to complete training by the end of 2015.[200]

The successful experience in Kobanî had informed U.S. policy in regard to arming Syrian opposition groups other than the Kurdish YPG, with plans to give other groups technicals equipped with radio and GPS equipment to call in airstrikes.[177] John R. Allen, President Obama's envoy to the international coalition against ISIL, stated "It is clearly part of our plan, that not only we will train them, and we will equip them with the latest weapons systems, but we will also protect them when the time comes".[202] In March 2015, the United Kingdom announced that it was sending around 75 military instructors to train Syrian opposition forces.[203][204] The train-and-equip program started on 9 May 2015.[205] On 25 May, Turkey and the U.S. agreed "in principle" on the necessity to support these forces with air support.[206]

However, only about 200 rebel fighters actually began training, the majority of whom left after being required to agree to fight only against ISIL and not the Assad government.[207] By mid-2015, only a group of 54 such fighters (Division 30) had been deployed – which was quickly routed in an ambush by al-Nusra[208] – and a further 100 had been thus far finished training in Jordan.[209] In September 2015, it was reported that a further 100-120 were being trained in a second wave,[210] with 75 more Division 30 fighters reported to have re-entered Syria at the end of the month; they were immediately attacked by al-Nusra.[211]

Jane's Defence Weekly reported that in December 2015 the U.S. shipped 994 tonnes of weapons and ammunition (including packaging and container weight), generally of Soviet-type equipment from Eastern Europe, to Syrian rebel groups under the ongoing CIA Timber Sycamore operation. A detailed list of weapon types and shipment weights had been obtained from the U.S. government's Federal Business Opportunities website.[212][213] As of July 2016, extensive arms shipments were continuing.[214][215][216]

It was reported in July 2017 that the Donald Trump administration decided to "phase-out" the CIA program to equip and train anti-government rebel groups.[217][218][219]

Multinational air war

 
USS Carl Vinson and support ships deployed for combat operations in Syria and Iraq, 2014

Contributing countries

U.S. airstrikes

 
Tomahawk missiles being fired from the warships USS Philippine Sea and USS Arleigh Burke at ISIL targets in the city of Raqqa
 
An F/A-18 Super Hornet taking off from USS Carl Vinson before carrying out strikes on ISIL targets in Syria

In his address to the nation on 10 September 2014, U.S. President Obama announced his intention to bomb ISIL targets in Syria and called on Congress to authorize a program to train and arm rebels who were fighting ISIL and the Syrian forces of Bashar al-Assad.[223] For the first time, he authorized direct attacks against the militant group in Syria. In his address, he said the United States were going on offensive, launching "a steady, relentless effort to take out" the group "wherever they exist." Obama also announced creating of a broader coalition against ISIL.[224]

Commenting on Obama's address, Russian Foreign Ministry spokesman Alexander Lukashevich [ru] opposed the U.S. intervention against ISIL in Syria "without the consent of the legitimate government" and said that "this step, in the absence of a UN Security Council decision, would be an act of aggression, a gross violation of international law". Ali Haidar, Syrian minister of national reconciliation, said that "any action of any kind without the consent of the Syrian government would be an attack on Syria".[225]

On 17 September, the U.S. House of Representatives approved Obama's plan to train and arm the Syrian rebels in their fight against ISIL. In a statement following the House vote, Obama said that the United States would not send military troops to Syria.[226] The Senate gave final congressional approval to Obama's proposal the next day.[227]

The U.S. did not request permission from the Syrian government, nor did it coordinate its actions with the Syrian government, provide direct notification to the Syrian military or give indication of timing on specific targets, but it did notify the Syrian U.N. representative, which the Syrian government confirmed.[228]

Before the airstrikes began, the United States also informed Iran, the Assad government's largest regional ally, of their intention to launch airstrikes. It did not share specific timing or targets of strikes with the Iranian government but reportedly assured it that the US would not strike any Syrian government targets.[229]

On 8 April 2018, U.S. President Donald Trump called Syrian President Bashar Al-Assad "Animal Assad", following suspected chemical attack carried out in the Syrian city of Douma.[230] On 14 April, the United States, France, and the United Kingdom carried out missile strikes against Syria. On 30 May, President Al-Assad responded to the insult, by saying: "What you say is what you are."[231]

It was reported in June 2018 that the 441st Air Expeditionary Squadron reportedly maintained an unpaved runway in Sarrin, Raqqa Governorate.[232][233][234]

On 14 June 2020, a U.S. coalition drone strike killed Guardians of Religion Organization leaders Khalid al-Aruri and Bilal al-Sanaani who were driving a vehicle in Idlib.[235] There was reportedly no explosion and the target vehicle was relatively intact, with the roof and windshield impacted from above and one side shredded, leading observers to suggest the munition used was probably the kinetic Hellfire R9X missile that uses blades to eviscerate its target rather than an explosive warhead.[236] On 24 June, Abu Adnan al-Homsi, logistics and equipment commander at the Guardians of Religion Organization, was also killed by a U.S. drone strike.[237]

On 25 February 2021, U.S. military airstrikes commanded by U.S. president Joe Biden destroyed multiple facilities related to pro-Iranian militias including Kata'ib Hezbollah and Kata'ib Sayyid al-Shuhada, at a border control point near al-Hurri village, Abu Kamal District, in retaliation to Erbil missile attacks.[238][239] At least 17 militants were reported killed in the strikes, although the militias only confirmed one.[240] The strikes were conducted by two F15s dropping Joint Direct Attack Munitions (JDAM) and was the first overt military operation ordered by the Biden administration.[241]

On 28 June 2021, the U.S. military conducted airstrikes on facilities purportedly used by Iranian-supported militias near the Iraq–Syria border.[242] However, the SOHR stated that at least nine Iran-backed Iraqi militia fighters died, and many others were injured.[243]

Airstrikes on the Khorasan Group

 
F/A-18 Hornets take off from USS George H.W. Bush to strike ISIL targets in Syria

One of the groups targeted by U.S. airstrikes was the Khorasan Group, an extremist group of suspected al-Qaeda "core" members who were alleged to have been plotting an attack against the U.S. and other Western nations.[228] The strikes targeted Khorasan training camps, explosives and munitions production facilities, communications facilities, as well as command and control facilities. The group has been claimed to possess advanced bomb making skills and their plot is claimed to involve a bomb made of a nonmetallic device such as a toothpaste container or clothes dipped in explosive material.[244] The group is reportedly led by Muhsin al-Fadhli, a leader of al-Qaeda and a close confidant of Osama bin Laden.[244] Intelligence officials expressed concern that the group may include militants who were taught by Ibrahim al-Asiri, the chief bomb maker for al-Qaeda in the Arabian Peninsula, who is known for his sophisticated bomb making techniques that nearly downed two Western airliners.[244]

Later statements by government officials indicated that the threat of a plot may have been less severe than initially reported.[245][246] One official indicated that "there did not yet seem to be a concrete plan in the works",[245] while another told The Guardian that "there was no indication of an imminent domestic threat from the group" at the time the United States began bombing.[246]

On 6 November, a second round of airstrikes was launched against Khorasan and al-Nusra in northwestern Syria, along with Ahrar ash-Sham at its headquarters in Idlib, whose leadership had been infiltrated by al-Qaeda.[33] On 13 November 2014, the US launched a third set of airstrikes against Khorasan.[247] On 19 November, the US carried out another airstrike on Khorasan near Hazm, which struck and destroyed a storage facility associated with the group.[248] On 1 December, the US carried out another airstrike on Khorasan near Aleppo.[249]

On 24 March 2015, it was revealed that the US airstrikes on Khorasan had killed 17 militants from the group.[250]

On 8 July 2015, a US airstrike near the town of Sarmada in Idlib, Syria, killed Muhsin al-Fadhli, the leader of Khorasan.[67]

Ground operations

Initially, coalition leaders, including U.S. President Obama, said their ground forces would not be used in the fight against ISIL either in Iraq or Syria unless they were local coalition forces.[251] In Iraq, thousands of coalition troops from the U.S. and other nations had been deployed in an advisory capacity; in Syria no ground troops from the coalition were deployed in the beginning of the intervention.[252][253]

2015–16

 
U.S.-backed Syrian Democratic Forces soldiers in Manbij, 2016

In November 2015, the Obama administration began the deployment of U.S. special forces to Syria, with the mission of assisting rebel forces in their fight against ISIL, President Obama then ordered several dozen Special Operations troops into Rojava in northern Syria to assist local fighters battling ISIL, authorizing the first open-ended mission by American ground forces into the country.[254]

ISIL's deputy leader in Syria, Abu Ali al-Anbari, was killed by JSOC special forces operatives in March 2016, in eastern Syria near the Syrian–Iraqi border, while he and three other ISIL members were traveling in a vehicle coming from Raqqa. The US Special Forces ordered him to exit the vehicle, intending to arrest him. When he refused and pulled out an assault rifle instead, US forces fired at the vehicle, killing him and the other passengers on board. US commandos also seized electronics and other documents during the operation for intelligence purposes.[255]

In March 2016, King Abdullah of Jordan said that British forces had helped in the building up of a mechanized battalion in southern Syria, consisting of tribal fighters to combat the Syrian Army.[256]

On 17 March 2016, the day after the declaration of the Federation of Northern Syria, U.S. Defense Secretary Ashton Carter praised the Syrian Democratic Forces as having "proven to be excellent partners of ours on the ground in fighting ISIL. We are grateful for that, and we intend to continue to do that, recognizing the complexities of their regional role."[257]

 
U.S. Army Special Forces in Raqqa, May 2016; one is wearing a Kurdish YPJ patch

During the SDF's May 2016 offensive against ISIL in Northern Raqqa, U.S. Special Forces were widely reported and photographed to be present, with some of them wearing badges of the Kurdish YPG and YPJ on their uniforms.[258] On 21 May, Joseph Votel, commanding general of U.S. Central Command, completed a secret hours-long trip to northern Syria to visit several locations where there were U.S. special operations forces and meet with local forces the U.S. was helping train to fight ISIL. The visit came as the first of 250 additional U.S. special operations forces were beginning to arrive in Syria to work with local forces. The commander overseeing the war in Syria, at the end of a long Saturday spent touring SDF bases, said "We do, absolutely, have to go with what we've got".[259]

In September 2016, the U.S. spokesman for the Combined Joint Task Force – Operation Inherent Resolve (CJTF–OIR) confirmed that the SDF, including the YPG, is also part of the "vetted forces" in the train and equip program and would be supplied with weapons. The President of Turkey, Recep Tayyip Erdoğan, condemned this and claimed that the SDF are "endangering our future".[260]

In October 2016, U.S. Army Lt. Gen. Stephen J. Townsend, the commander of the international coalition against ISIL, said that the SDF would lead the impending assault on Raqqa, ISIL's then-stronghold and capital, and that SDF commanders would plan the operation with advice from American and coalition troops.[261] From November 2016, more than 300 U.S. Special Operations Forces were embedded to train and advise SDF fighters in the Raqqa offensive.[262]

2017–18

 
Kurdish troops and U.S. armored vehicle in Al-Hasakah, May 2017
 
U.S. Army 310th Engineer Company maintaining a Mabey Logistic Support Bridge during the Battle of Raqqa, 29 July 2017
U.S. Marines and Army Special Forces operating in support of the SDF in Syria, October 2018

In March 2017, the Trump administration deployed an additional 400 U.S. Marines to Syria to expand the fight against ISIL in the Raqqa offensive where they could provide artillery support for U.S.-backed local forces that were preparing an assault on Raqqa to liberate the city from IS militants. The deployment marked a new escalation in the U.S.'s war in Syria, and put more conventional U.S. troops in the battle that, until then, had primarily used Special Operations units. The 400 Marines were part of the 11th MEU from the Battalion Landing Team 1st Battalion, 4th Marines. They manned an artillery battery of M-777 Howitzers whilst additional infantrymen from the unit provided security; resupplies were handled by part of the expeditionary force's combat logistics element.[263] During the Raqqa campaign alone, this small artillery battalion fired over 40,000 shells (including 34,033 155 mm), more than were used in the entire 2003 invasion of Iraq and only 20,000 fewer than all those fired by the U.S. military in Operation Desert Storm.[264]

In March 2018, SDF press secretary in Deir ez-Zor Mehdi Kobani reportedly told Sputnik Turkiye that U.S. forces were building a "large military base" in the oil-rich al-Omar region of Deir ez-Zor as new equipment had been reportedly arriving to U.S. bases in Syria. The al-Omar oilfield is the largest oil deposit in Syria, and was captured by the SDF during their campaign against ISIL in October 2017.[265][266]

2019 drawdown of U.S. ground forces

On 19 December 2018, President Donald Trump announced that he ordered the pullout of all 2,000–2,500 U.S. troops operating in Syria, though no clear timetable was given.[267] A day later, after failing to convince Trump to reconsider his decision to withdraw all American troops from Syria, Jim Mattis announced his resignation as Secretary of Defense.[268] On 3 January 2019, Trump described Syria as "sand and death" in defense of troop withdrawal.[269] U.S. operations in al-Tanf would continue indefinitely.[270]

On 16 January 2019, a suicide bombing claimed by ISIL in the SDF-controlled town of Manbij killed four U.S. personnel and injured three servicemen, making it the deadliest attack on Coalition forces in the country since the intervention.[271][272][273] The ISIL attack drew a second round of criticism of the U.S. president's withdrawal order, with critics linking the attack with an emboldening of ISIL terror and insurgent tactics due to the announcement of a U.S. pullout, despite the group's continued loss of territory in Syria.[274] President Trump offered condolences to the families of the slain American citizens on 17 January while he reaffirmed his policy of withdrawing troops.[275] Trump paid tribute to the fallen Americans during a trip to Dover Air Force Base in the U.S. state of Delaware on 19 January, where their remains were received.[276]

On 21 January, an ISIL SVBIED targeted a U.S. convoy accompanied by SDF troops on the Shadadi-Al-Hasakah road in Al-Hasakah province, killing five SDF personnel. Witnesses said the SVBIED rammed into an SDF vehicle by a checkpoint held by Kurdish forces a dozen kilometers outside Shadadi as the U.S. convoy drove past. No Americans were harmed.[277]

CNN reported on 24 January that additional U.S. troops were moved to Syria to help provide security for the pullout of equipment and personnel as they are moved out via air and land routes. U.S. Department of Defense officials said the additional security forces would move around Syria to different locations as needed and may move in and out of the country at times. Troop numbers would also fluctuate as American presence gradually declines. Defense officials declined to give specifics on numbers, locations, or timetables, citing security concerns.[278] Local sources reported to Anadolu Agency on 28 January that around 600 U.S. troops had allegedly entered eastern Syria from western Iraq to help with the withdrawal process, arriving at discreet bases in Harab Isk and Sarrin villages set to be used as main evacuation centers during the withdrawal. The news agency added that the American-controlled airfields in Rmeilan and Tell Beydar would be used to airlift heavy weapons and equipment from the country; the Coalition itself did not confirm these reports.[279]

By the end of January 2019, according to two U.S. officials, more than 10 percent of American equipment and supplies had been removed from Syria, with 3,000 additional personnel brought into the country to facilitate the draw-down of forces. By 9 February, hundreds of U.S. airstrikes and ground support for the SDF continued as the Kurdish-led force began its final assault on the last ISIL holdouts trapped in a small cluster of hamlets in eastern Syria (including Al-Baghuz Fawqani and southern Al-Marashidah) no larger than a few square miles. U.S. officials, including President Donald Trump, believed the SDF would be able to defeat the remaining diehard ISIL fighters "in days", bringing an end to ISIL's claim of a territorial caliphate.[280]

On 18 February, Commander-in-Chief of the SDF Mazlum Kobane expressed hopes the U.S. would halt its total pullout. Kobane said there were discussions about perhaps French and British troops supporting them, but demanded 1,000–1,500 U.S. troops stay in Syria to provide "air cover, air support and a force on the ground" to help the SDF in its ongoing fight against ISIL. CENTCOM commander Gen. Joseph Votel reiterated the U.S. withdrawal was continuing.[281]

With the general withdrawal continuing, the White House announced late on 21 February that 200 residual U.S. troops would remain in Syria as a "peacekeeping force". The peacekeeping deployment would be indefinite.[282] The next day it was revealed the actual number was 400 troops, not 200, as half would be based in Rojava and half at al-Tanf. Officials stated it was a part of an initiative to get NATO allies to commit to a multinational observer force that would establish a "safe zone" in Rojava to keep the Kurds and Turks from clashing, to prevent pro-Syrian government forces from attacking the Kurds, and to keep up pressure to prevent an ISIL resurgence. The U.S. was not seeking a United Nations mandate for the deployment and did not envision asking NATO to sponsor the mission, an administration official said at the time, adding that the troops would not technically be "peacekeepers," a term that carries restricted rules of engagement.[283]

On 7 March, Gen. Joseph Votel confirmed that U.S. forces were in no rush to pullout by a specific date, instead saying the completion of the withdrawal was conditional on ISIL no longer posing a security threat to U.S. forces and their allies.[284] By late March, the U.S. continued to stretch the timetable for the pullout. On 29 March, U.S. officials reportedly said the Pentagon's latest plans called for cutting its combat force in northeastern Syria roughly in half by early May 2019, or to about 1,000 troops, and would then pause pullout operations. The military would then reduce the number of forces every six months, depending on conditions on the ground, until it reaches the 400 troops previously approved by the president. Under this plan, the lowest troop numbers would not be reached until autumn 2020. The longer timetable would provide the U.S. more time to negotiate and work out details over the planned multinational safe zone along Turkey's border. Officials cautioned that the timetable was open-ended and still subject to change, with factors ranging from allied troop contributions to new orders from the president himself.[285]

In early May, video emerged online of U.S. forces firing upon an alleged Syrian government barge ferrying oil supplies in the Middle Euphrates River Valley. The video was posted on Facebook by the pro-SDF "Deir Ezzor Media Center".[286]

Withdrawal from north Syria

Following the collapse of the August–October 2019 Northern Syria Buffer Zone agreement and subsequent Turkish offensive against the SDF, U.S. ground forces began deliberately withdrawing from many of their bases, outposts, and camps in north Syria around 6 October, including Manbij[287] and the Lafarge cement factory, upon "precipitous" orders from the Donald Trump administration.[288] Senior U.S. military officials said that troops abandoned bases as far south as Tabqah and Raqqa and consolidated all personnel and essential equipment near Kobanî to await airlifts and convoys out of the country throughout coming weeks.[289] A U.S. official at the time said the ≈1,000 U.S. troops being withdrawn will mostly reposition in western Iraq but also possibly Kuwait and Jordan. From Iraq, U.S. forces could conduct cross-border operations against ISIL in Syria, as they had done so in the past.[290]

U.S. soldiers remove equipment and prepare to retrograde from their base at the Lafarge cement factory in north Syria, 15 October 2019

During the withdrawal, which was described in news media as a "scramble", reports emerged showing that U.S. and SDF troops had hastily stripped their camps and bases of sensitive materials but left fortifications in place, many of which became immediately occupied by Syrian government and Russian forces as they quickly moved into the region as part of a protection deal, established on 13 October, between the Assad government and Rojava. Video emerged online of Russian troops reportedly exploring an abandoned U.S. outpost near Manbij.[289][291] On 16 October, two Operation Inherent Resolve F-15 jets bombed their section of the Lafarge cement factory base, located between Kobanî and Ayn Issa, "to destroy an ammunition cache and reduce the facility's military usefulness" as Turkish-backed militias advanced towards the area. "The location had been the headquarters of the de facto Defeat-ISIS coalition in Syria," Inherent Resolve spokesman Col. Myles Caggins III said, adding that "No U.S. forces or equipment were ever in jeopardy and remain within separate, secure facilities." SDF personnel burned their part of the base before departing.[292] On the same day, President Trump commented on the developments by describing the Kurds as "no angels", and about Syria, he said: "Syria may have some help with Russia, and that's fine. It's a lot of sand. They've got a lot of sand over there. So there's a lot of sand there that they can play with".[293]

On 18 October, after a "ceasefire" between Turkish and Kurdish forces was declared a day prior, U.S. Defense Secretary Mark Esper stated that the withdrawal was continuing and that the U.S. would continue to communicate with both Turkey and the SDF. A senior defense official stated that U.S. aircraft would continue to conduct intelligence missions over northeast Syria to monitor the situation there.[294] In late October, Esper said the U.S. forces leaving Syria would head into western Iraq. But after Iraqi leaders said those troops can't stay there, Esper said they will be deployed in Iraq only temporarily before returning to the U.S.[295] According to The New York Times, citing U.S. Defense Department officials, by 30 October at least half of the original ≈1,000 U.S. troops in Syria had withdrawn and was expected to be reduced to roughly 250 personnel, largely concentrated in the Deir ez-Zor region.[296]

On 31 October, Syrian President Bashar Al-Assad called President Trump as the "best American president", because he is the most transparent foe, due to his audacity to take the Syrian oil.[297]

On 3 November 2019 U.S. and coalition forces departed their strategic military base near the town of Sarrin. U.S. forces removed all their equipment and were seen leaving the base in a convoy of tens of trucks. The base was one of the largest U.S. bases in Syria, a logistics hub that assisted in the anti-ISIL intervention.[298] On 10 November, U.S. Chairman of the Joint Chiefs of Staff Mark Milley stated that at least 500-600 U.S. troops would remain in Syria and will not exceed 1,000 personnel. It was not clear if that estimate included the ≈200 troops at al-Tanf.[299]

By mid-November, Russian and Syrian government forces had quickly filled the power vacuum left behind by the U.S. in much of northern Syria. The U.S. had withdrawn from its logistics base in Kobanî by 14 November, with Russia announcing it would set up a new helicopter base in Qamishli the same day.[300] On 17 November, Russia's state-owned Zvezda channel aired footage of armed Russian sappers and Military Police seizing control of the Kobanî airbase days prior, with choppers landing on the U.S.-made airstrip there and the Russian flag seen hoisted over the fortification, of which had been hastily stripped of essentials by coalition personnel, only leaving behind toiletries, sleeping facilities, some exercise equipment, and other small items.[301] While Syrian government troops gradually re-established its presence in the region, Russia and Turkey continued to occupy and conduct patrols throughout north east Syria as well, in accordance with the Sochi Agreement.

By 4 December, the U.S. had completed its military pullback from northeastern Syria and had consolidated its troop presence in the country to a "relatively static" 600 personnel, according to Mark Esper.[302] The withdrawal from north Syria was partially carried out by the U.S. Army 103rd Expeditionary Sustainment Command's Syria Logistics Cell (SLC), a key component of the Army's 1st Theater Sustainment Command, Special Operations Joint Task Force-Operation Inherent Resolve, and Combined Joint Task Force-Operation Inherent Resolve.[303]

2019–20: Eastern Syria redeployment

A U.S. military convoy passes through Qamishli on 26 October 2019, amid the return of U.S. forces to oil fields in northeast Syria
 
4th Battalion, 118th Infantry Regiment (attached to 218th MEB) at a staging area in Syria, 10 November 2019

By 20 October 2019,[296] after backlash from the U.S. Congress, the Trump administration had conducted a partial reversal of its 6 October order to pullout 1,000 troops from Syria, instead confirming a newly dedicated mission to guard oil and gas fields and related infrastructure in SDF-controlled eastern Syria from ISIL insurgent attacks. While U.S. forces continued to reduce its presence in northern Syria by the hundreds to avoid Syrian-SDF and Turkish fighting, the U.S. simultaneously shifted more resources south and east into the oil-rich Deir ez-Zor Governorate.[296] Defense Secretary Mark Esper confirmed on 25 October that the U.S. would "maintain a reduced presence in Syria and deny ISIS access to oil revenue"[296] and, in support of the mission, mechanized and armored units would be deployed to eastern Syria to reinforce the American presence there.[295] Throughout late October-early November 2019, this contingent was reinforced with hundreds of new infantry troops joined by mechanized infantry Armored Brigade Combat Teams (ABCTs) in Bradley IFVs and—according to unnamed sources—potentially tanks, redeployed from Iraq and Kuwait, which was estimated to raise the number of U.S. troops in eastern Syria to around 500 at the time. When coupled with the U.S. garrison at al-Tanf, the contingency force's numbers rise to a flexible 800–900 personnel.[296] In Syria's Deir ez-Zor Governorate, which lies far to the North-East of al-Tanf, the United States has stated that it will increase its presence in SDF controlled territory along the Eastern bank of the Euphrates river and also establish military bases at al-Baghuz, al-Basira, al-Ezba, and the al-Omar oil field.[304]

 
M2A2 Bradley IFVs of the 4th Battalion, 118th Infantry Regiment accompany a patrol in eastern Syria, 13 November 2019

On 30 October, 4th Battalion, 118th Infantry Regiment, a U.S. combined arms battalion equipped with M2A2 Bradley IFVs deployed to the Deir ez-Zor region with Bradleys to help guard SDF-U.S. controlled oil and gas fields. The battalion is part of the U.S. Army National Guard's 30th ABCT which had begun arriving in Kuwait the week prior to relieve the regular Army 3rd Brigade Combat Team, 4th Infantry Division in support of Operation Spartan Shield, the U.S.'s theater-level contingency force for the Middle East.[305] By 31 October, U.S. forces in M-ATV convoys were seen conducting dedicated patrols of oil and gas-related facilities throughout Syria's al-Hasakah and Deir ez-Zor Governorates, usually accompanied by SDF personnel. The U.S.'s deployment of heavy armored vehicles to Syria for the first time in the intervention—as opposed to the lighter armored RG-33s, M-ATVs, Strykers, Armored Ground Mobility Systems,[citation needed] and NSTVs (Non-Standard Tactical Vehicles) U.S. special operations units and regular ground forces have used prior—introduced additional firepower and force protection capabilities for ground forces.[305] Nevertheless, the Bradley IFVs were pulled out of Syria after less than two months of deployment due to unspecified reasons.[306]

On 3 November, OIR officials confirmed that multiple artillery rounds landed about one kilometer from a road with a U.S. convoy; OIR, without offering additional details, stated no personnel were injured and the patrol was not hit. The Russian Defense Ministry were the first to report the incident, adding that the incident was near Tell Tamer and that it was elements of Turkish-backed rebels that fired the artillery.[307] On 4 November, Rudaw briefly interviewed a U.S. special operations soldier during a patrol at an oilfield near Rmelan, who stated that U.S. forces are "working with the SDF and they're letting us know the situation up here as they see it." According to North Press Agency, the U.S. patrol had begun in Rmelan and spanned the towns of al-Jawadiyah, al-Malikiyah, and Ain-Diwar.[308] On 15 December, a large U.S. logistical convoy en route to Deir ez-Zor was reportedly seen crossing Semalka into al-Hasakah province from Iraq.[309]

By mid-January 2020, tensions between Russian and U.S. forces in northeast Syria had reportedly grown as U.S. troops had increasingly begun blocking Russian convoys from accessing certain major roads between towns. Both Russia and the U.S. operate military outposts throughout the region as a part of their respective missions.[310] On 25 August, a Russian military vehicle rammed a U.S. armored car near al-Malikiyah, northeastern Syria, in which four US soldiers had suffered mild concussion. Russian defense minister Sergey Shoygu said that "the US armed forces soldiers tried to block the Russian patrol"; meanwhile, a US defense official said that Russian forces went to a "security zone" that they should not enter.[311]

On 30 July 2020, the Autonomous Administration of North and East Syria signed an agreement with an American oil company, Delta Crescent Energy LLC, to develop oil fields in the region.[312] The Syrian authorities condemned the agreement, and mentioned that: "This agreement is null and void and has no legal basis."[313] Seizing oil without local government permission would be a war crime of pillage.[314]

On 17 August, U.S. forces killed at least one Syrian soldier and wounded two others, after a fire exchange near a checkpoint in the village of Tal Dahab, near Qamishli, northeastern Syria.[315]

On 19 September, the U.S. deployed additional troops, equipment and armored vehicles to north-eastern Syria after tensions with Russia escalated in the region. According to officials, the moves were meant "to help ensure the safety and security of coalition forces."[316] U.S. Central Command mentioned that the United States had deployed Sentinel radars and Bradley vehicles to augment forces in the "Eastern Syria Security Area" (ESSA).[317] The reinforcements were considered a response to a 26 August incident where a Russian armored vehicle collided with a coalition M-ATV, injuring four U.S. soldiers.[318]

2021–present: Continued Iranian—U.S. proxy conflict

 
U.S. 1st Battalion, 6th Infantry Regiment troops conduct area reconnaissance in Syria, 18 February 2021

On 10 February 2021, Pentagon Press Secretary John Kirby told reporters that U.S. troops were not committed to protecting Syrian oil fields except "for where appropriate under certain existing authorizations to protect civilians." He added that "DOD [Department of Defense] personnel or contractors are not authorized to provide assistance to any other private company, including its employees or agents, seeking to develop oil resources in northeastern Syria."[46] However, there were reports from local sources in northeastern Syria that U.S. forces had transported oil and wheat smuggled from Syria to Iraq.[319]

On 20 October 2021, troops at the al-Tanf garrison were attacked by bomb-laden drones in what Pentagon spokesman John Kirby called a "complex, coordinated and deliberate attack". U.S. officials reportedly blamed Iran and its proxy forces for the attack, but publicly declined to specify details of the attack and whether the U.S. was considering retaliation. There were no reports of deaths or injuries. Attacks by small drones carrying munitions have posed a consistent threat to U.S. forces in eastern Syria since at least March 2020, with U.S. forces suspecting ISIL or Iran-backed elements of conducting the attacks, as U.S.-Iranian tensions in the region have persisted.[320]

Turkish involvement

 
U.S. and Turkish soldiers conduct joint patrols, Manbij outskirts, 1 November 2018

Turkey, a NATO member, has been involved in the Syrian Civil War since the beginning of hostilities. Turkey has trained and armed some members of the Free Syrian Army and al-Qaeda in Syria,[321][322] and has been involved in certain spillover incidents. On 2 October 2014, the Turkish Parliament authorized direct military action in both Iraq and Syria including using military force in Syria and Iraq as well as allowing coalition members to use bases in Turkey.[323] Turkey has also stationed troops and tanks on its southern border near the Syrian border city of Kobanî.[324] The Turkish government demanded several things to go along with them intervening against ISIL, including a buffer zone in Northern Syria, a no-fly zone over certain parts of northern Syria, ground troops from other countries, and the training of moderate opposition forces to fight both ISIL and al-Assad.[325][326]

In October 2014, the Turkish Parliament authorized direct military action in both Iraq and Syria, including using military force, as well as allowing Combined Joint Task Force – Operation Inherent Resolve members to use bases in Turkey.[323][324][325][326] The same month, US Vice President Joe Biden accused Turkey of funding al-Nusra and al Qaeda,[327] after which Turkish President Recep Erdoğan demanded an apology, adding that if no apology was made, Biden would become "history to me."[328] Biden subsequently apologized.[329]

On 22 February 2015, the Turkish Army mounted an operation across the border to evacuate its soldiers from the Tomb of Suleyman Shah and relocate the tomb. The Turkish convoy of 572 troops in 39 tanks and 57 armoured vehicles transited through Kurdish-held city of Kobanî en route to the tomb. One Turkish soldier was killed in what government of Turkey described as an accident. The success of the operation was announced 22 February by Turkish Prime Minister Ahmet Davutoğlu.[330]

Rising anti-American sentiment in Turkey has occurred since the start of the Turkish invasion of northern Syria in January 2018 aimed at ousting Syrian Kurdish forces from the enclave of Afrin. A poll conducted in Turkey during the operation revealed that 90 percent of respondents believed that the United States is "behind" the Kurdish PKK and YPG.[331] After the start of the Turkish invasion, U.S. Secretary of Defense Jim Mattis stated that "Turkey is a NATO ally. It's the only NATO country with an active insurgency inside its borders. And Turkey has legitimate security concerns."[332] Turkish Deputy Prime Minister Bekir Bozdag urged the United States to halt its support for Kurdish YPG fighters, saying: "Those who support the terrorist organization will become a target in this battle."[333]

Northern Syria Buffer Zone

 
U.S. and Turkish soldiers rendezvous in the Northern Syria Buffer Zone, 4 October 2019.

On 15 January 2019, the Turkish President Recep Tayyip Erdogan said he agreed with setting up a 35 km (22 mi) "safe zone" in northern Syria, after engaging with U.S. President Donald Trump a few days prior.[334]

On 7 August 2019, after months of negotiations, Turkey and the U.S. reached a deal to create a 115 km (71 mi) buffer zone in northern Syria along the Syria–Turkey border between the Tigris and Euphrates rivers. Separate from Turkey's own occupation zone in northern Syria, the deal was reached partly to prevent a potential future Turkish ground incursion into Rojava against U.S.-backed Kurdish forces. Under the framework of the deal, the U.S. and Turkey conducted joint troop patrols, and Turkish reconnaissance aircraft would be allowed to monitor the zone. Kurdish YPG and YPJ forces along the Turkish border dismantled their border fortifications, withdrew to a "security belt" alongside regular SDF forces, and removed all heavy weapons from the area. In turn, Turkey was not to conduct airstrikes or establish military observation posts in northern Syria, and was not to "occupy" the region, as administrative and civil rule was to be relegated to SDF military councils and the Kurdish Autonomous Administration of North and East Syria. According to the SDF, the majority of the zone was not to include any cities or towns.[335]

The buffer zone agreement was proven to be short-lived and collapsed on 7 October, after U.S. President Donald Trump gave his approval for a Turkish ground offensive into Rojava, and ordered the withdrawal of U.S. troops from northern Syria. The agreement was rendered fully obsolete on 9 October, when Turkey launched a ground incursion into Rojava.[336] In response to the offensive, U.S. Senator Lindsey Graham warned that he would “introduce bipartisan sanctions against Turkey if they invade Syria.” He said he would also "call for their suspension from NATO if they attack Kurdish forces who assisted the U.S. in the destruction of the ISIS Caliphate."[337]

Reports of civilian casualties and war crimes

 
A coalition airstrike on ISIL positions in Kobanî.

On 29 September 2014, several groups including the Syrian Observatory for Human Rights (SOHR), the Aleppo Media Center, and the Local Coordination Committees reported that U.S. strikes hit a grain silo in the ISIL-controlled town of Manbij in northern Syria, killing two civilians.[338]

The SOHR reported ten airstrikes, also targeting various parts of the province of Idlib, killed at least one child and six other civilians. The group said at least 19 civilians had been killed in coalition airstrikes at that time.[339] The Pentagon reported it had no evidence of any civilian casualties from airstrikes targeting militants in Syria.[340] The United States has also acknowledged that its rules to avoid civilian casualties are looser in Syria than those for drone strikes elsewhere.[341]

The SOHR and other activist groups reported that seven civilians were killed when an air strike hit a gas distribution facility near the town of al-Khasham is the eastern Deir al-Zor province on 17 October 2014 and three civilians were killed in an air strike on 16 October 2014 in the north east province of al-Hassakah. According to their reports, most of the civilians killed were fuel tanker drivers.[342]

According to Reuters, 50 civilians were killed in Syria by US-led airstrikes, from the start of the campaign in late September 2014 to mid-November.[343] On 28 December 2014, a U.S. airstrike in the northern Syrian town of Al-Bab killed more than 50 civilians.[344]

On 21 May 2015, the United States admitted it "probably" killed two children in bombings near Harem on 4 and 5 November 2014. These are the first such admissions of the campaign, and followed a military investigation. A similar investigation regarding an event in Syria is underway, and two regarding events in Iraq.[345] Two adult civilians were also minorly injured in the Harem strikes. The deaths and injuries are attributed by the military investigation to unintentional secondary explosions, after the bombers hit their intended targets, linked to the Khorasan.[346] On 19 July 2016 a coalition led airstrike on the ISIL controlled villages of Tokhar and Hoshariyeh reportedly killed at least 56 civilians, including 11 children.[347] On 3 August 2016, dozens of civilians were killed after an airstrike in al-Qa'im, some sources claiming that 30 were killed.[348]

Airwars, which "maintains an extensive database of all known allegations in which civilians and friendly forces have been reported killed by the Coalition since August 2014", reports between 503 and 700 civilians were killed by Coalition airstrikes in Syria as of April 2016.[349]

At least 33 people were killed in a U.S.-led coalition airstrike on a school near Raqqa in March 2017.[350] On 16 March 2017, a U.S. airstrike in rebel-held Aleppo killed at least 46 people and wounded more than 100 after warplanes hit a mosque.[351]

 
A destroyed neighborhood in Raqqa in August 2017

According to a report by Amnesty International, the U.S.-led Coalition has provided falsified data to conceal the actual number of civilian deaths resulting from their bombing campaigns and is "deeply in denial" about civilian casualties in Raqqa. After an investigation by Amnesty International in June 2018, the U.S.-led Coalition confirmed that "coalition air strikes killed 70 civilians, mostly women and children – including 39 members of a single family."[352]

According to Airwars,[353] the strikes of U.S.-led coalition killed as many as 6,000 civilians in Syria and Iraq in 2017.[354]

On 2 May 2018, Britain's Ministry of Defense admitted for the first time that a civilian was "unintentionally" killed in an anti-ISIL drone strike on 26 March 2018. According to the MoD, the civilian was on a motorbike and entered the target area at the last minute. Defense Secretary Gavin Williamson said the incident was "deeply regrettable".[355][356]

On 18 March 2019, during the Battle of Baghuz Fawqani, a U.S. special operations-led airstrike killed up to 80 people, including 64 civilians, almost exclusively women and children, and 18 ISIL militants, according to The New York Times. The site of the strike was bulldozed and the incident was covered up by the U.S. military until a New York Times report exposed the cover-up in November 2021.[357] A US military investigation in May 2022 concluded that the airstrike killed 52 ISIL fighters and 4 civilians and did not violate the laws of war.[358]

On 25 April 2019 a joint investigation by Amnesty International and Airwars of over 200 strike sites reported that anti-ISIL Coalition bombing during the 2017 Battle of Raqqa had killed 1,600 civilians alone. CJTF-OIR reported the month prior that its 4-year operations over both Iraq and Syria amounted to 1,257 civilian casualties overall. "Coalition forces razed Raqqa...Amnesty International and Airwars call upon the Coalition forces to end their denial about the shocking scale of civilian deaths and destruction caused by their offensive in Raqqa," the investigators said in a joint statement. The Coalition responded that they "continue to employ thorough and deliberate targeting and strike processes to minimize the impact of our operations on civilian populations and infrastructure."[359]

By August 2022, Airwars estimated 8,192–13,247 civilian deaths in Iraq and Syria due to Coalition airstrikes, including 1,724–2,366 children, 1,119-1,459 women, and 3,717 named victims. The Coalition's own estimate of civilian deaths was 1,417. Coalition airstrikes also wounded between 5,875-9,098 civilians.[360]

Results

 
An ISIL command and control center before and after an F-22 airstrike on 23 September 2014

The U.S.-led air campaign inflicted heavy losses on the Islamic State and, alongside special forces operations, artillery strikes, and material and intelligence support to the SDF, catalyzed the loss of the bulk of ISIL's Syrian territory. By late 2015, coalition planes were dropping or launching an average of 67 bombs or missiles a day.[361]

According to CJTF-OIR, by May 2016, ISIL had lost 25 percent of the territory it possessed in Syria since the campaign began, mostly due to advances by YPG/SDF forces with heavy Coalition air support.[362] By the end of 2016 the U.S.-led air campaign against ISIL in both Iraq and Syria was estimated by the Pentagon to have struck 32,000 targets (including 164 tanks, 400 Humvees, and 2,638 pieces of oil infrastructure) and killed 50,000 militants, with approximately 1/3 of the losses taking place in Syria.[39][363]

By August 2017, CJTF-OIR had flown 168,000 sorties in both Syria and Iraq (mostly against ISIL).[39] By December 2017, the Pentagon increased the estimate to 80,000 ISIL fighters killed by coalition airstrikes between Iraq and Syria.[364] By the end of 2018, the SDF, assisted by the coalition, had liberated over 20,000 square kilometers of territory, and three million Syrian civilians from the Islamic State.[365]

By 23 March 2019, the day of ISIL's territorial collapse in Syria, CJTF-OIR and partner forces had liberated nearly 110,000 square kilometers (42,471 square miles) from the Islamic State; as a result, 7.7 million people no longer lived under ISIL's "caliphate".[366]

The United Nations estimated in August 2020 that over 10,000 ISIL insurgents remained in Syria and Iraq.[367]

Reactions

Domestic U.S. approval

The intervention was initially conducted with strong domestic U.S. support; according to Gallup polling in 2014, 61% of Americans supported intervention against ISIL in both Iraq and Syria, while 30% were opposed, and 9% undecided.[368] A larger CCGA poll taken in 2016 showed that 72% of Americans supported "conducting airstrikes against violent Islamic extremist groups in Syria", while 58% also supported "sending special operations forces into Syria to fight violent Islamic extremist groups." Additionally, a slim majority (52%) supported "enforcing a no-fly zone over parts of Syria, including bombing Syrian air defenses." However, only 26% supported "sending arms and other supplies to anti-government rebel groups in Syria."[369]

A CNN poll conducted between 17 and 20 October 2019, showed that 75% of Americans were generally concerned about the situation in Syria, with 43% saying they were "very concerned". 51% thought the U.S. had a responsibility to remain involved in the Syrian conflict (seven months after ISIL's final Syrian settlement had fallen), while 43% did not.[370]

Syrian reactions

  •   Syria – In 2014, a week before the first airstrikes, Ali Haidar, the Syrian Minister of National Reconciliation, said that "any action of any kind without the consent of the Syrian government would be an attack on Syria".[225] However, despite Haidar's original statement, after the coalition campaign began, the Syrian government struck a more conciliatory tone with Foreign Minister Walid al-Moallem suggesting the airstrikes were an indication that Syria and the anti-ISIL coalition were on the same side.[371] Among the general Syrian population, a July 2015 poll by ORB International surveying 1,365 adults in all of Syria's 14 governorates found that 47% supported U.S.-led airstrikes on ISIL while 50% opposed them.[372] Opposition to American airstrikes was strongest in ISIL-held territory, where 92% were opposed; support was strongest in YPG-held territory and government-held territory, where 87% and 55% respectively supported American strikes on ISIL.[373]
  •   Syrian opposition – Hadi Bahra, the leader of the National Coalition for Syrian Revolutionary and Opposition Forces called for airstrikes against ISIL before the intervention began. The coalition is recognized by 20 countries, the European Union, and the Arab league as the legitimate representative of Syria in opposition to the Assad government. Bahra said strikes were needed to weaken ISIL, a faction in the inter-rebel conflict during the Syrian Civil War, so that the Free Syrian Army and other moderate opposition forces could oppose Assad more effectively.[374] Despite Bahra's support, many Syrian rebel groups have criticized U.S. airstrikes for targeting only ISIL who are enemies of the Assad government, while not also targeting Assad government forces, the results of which could help government forces gain more ground.[341] Meanwhile, jihadist groups within the opposition have portrayed the coalition as an anti-Sunni stooge of the Syrian regime,[375] while many Sunnis in Syria are angered that only extremist Sunnis are being targeted while mostly Shiite Assad forces are not targeted.[376] Some rebels defected to extremist groups as a result of the U.S. decision to strike jihadist groups other than ISIL, such as the al-Nusra Front.[377]

International reactions

In a Pew poll taken in 2015, a median of 62% of people across the nations polled said they support American military efforts against the Islamic State group in Iraq and Syria, while a median of 24% were opposed. Among those in support were 78% of Lebanese, 77% of Jordanians, 48% of Turks, 53% of Palestinians, and 84% of Israelis, as well as 81% of French, 66% of British, and 62% of Germans.[378]

  •   Australia – Tony Abbott, the Prime Minister of Australia, praised the intervention, saying that an international effort was needed in order to combat the ISIL threat.[228] Despite Abbott's support for the intervention, the Australian Government said it is not likely to contribute forces to operations in Syria.[379]
  •   Canada – Stephen Harper, the Prime Minister of Canada, said in October 2014 Canada would strike ISIL targets in Syria if the Assad government gave approval.[380] New Prime Minister Justin Trudeau called President Obama almost immediately after coming into office to inform him that Canada will be ceasing air operations in coordination with Americans. Trudeau did not give a time frame.[381]
  •   Czech Republic – Lubomír Zaorálek, the Minister of Foreign Affairs of the Czech Republic supported the intervention against the Islamic State and said that it is important to keep supporting the ground forces in the battle against ISIS and the Czech Republic will keep providing military support to the Iraqi army and to the Kurdish Peshmerga. He also noted that air strikes would not defeat Islamic State. The Czech government said that ISIS is enemy not only for safety in the Middle East, but also for security and stability in the Czech Republic and Europe.[382]
  •   Ecuador – The Ecuadorian government opposed the airstrikes in Syria without the consent of the Syrian government.[383]
  •   Egypt – Egyptian President Abdel Fattah el-Sisi expressed his government's support for the international campaign against ISIL, and a spokesperson for the Egyptian foreign ministry echoed his statements by reiterating the Egyptian government's willingness to back the war against ISIL.[384][385]
  •   Germany – German foreign minister Frank-Walter Steinmeier questioned whether President Obama's plan was adequate in order to combat ISIL and said Germany had not been asked to participate in airstrikes nor would it participate if asked.[386]
  •   Iran – Iranian President Hassan Rouhani condemned ISIL's actions but also called the airstrikes in Syria "illegal" because they were conducted without the consent of the Syrian government.[387] Iran's deputy foreign minister Hossein Amir Abdollahian was reported in Iranian media as saying that Iran had warned the United States that Israel would be at risk should the US and its allies seek to topple Syrian president Bashar al-Assad while fighting ISIL in Syria.[388]
  •   Israel – Israeli Prime Minister Benjamin Netanyahu said Israel fully supported the U.S. government's calls for united action against ISIL.[386]
  •   Japan – A spokesperson for the Japanese Ministry of Foreign Affairs said the Japanese government would continue to closely coordinate with the United States and other countries, along with offering support and cooperation in their strikes against ISIL.[389]
  •   Netherlands – Mark Rutte, the Prime Minister of the Netherlands, showed understanding for the intervention against ISIL in Syria and said that his government was exploring options to contribute in the fight against ISIL.[390]
  •   Russia – Alexander Lukashevich, Russian Foreign Ministry spokesman, opposed the military intervention "without the consent of the legitimate government" and said that "this step, in the absence of a UN Security Council decision, would be an act of aggression, a gross violation of international law".[225] On 14 October, Russian Foreign Minister Sergey Lavrov questioned the motives of the intervention, saying "Maybe their stated goal is not entirely sincere? Maybe it is regime change?" He also questioned the effectiveness of the year long campaign "With, as far as I know, 25,000 sorties they [US-led air campaign] could have smashed the entire [country of] Syria into smithereens," continuing to remark that "positive results 'on the ground' are not visible". He also criticized the continued supply of arms to rebels, saying "I want to be honest, we barely have any doubt that at least a considerable part of these weapons will fall into the terrorists' hands." He continued to call for the countries involved to join a coalition made up of Russian, Syrian, Iranian, Iraqi, Jordanian and Hezbollah forces against what Russia claims is solely ISIL and al Qaeda, but the US has asserted is primarily non-jihadist opposition forces.[391]
Dmitry Peskov, spokesman for the Russian President Vladimir Putin, described the US air strikes on the Shayrat airbase as "an act of aggression against a sovereign state delivered in violation of international law under a far-fetched pretext.... a serious blow to Russian-US relations, which are already in a poor state".[392]
Foreign Minister Sergei Lavrov referred to the Sharyat attack as "an act of aggression under a completely invented pretext". He compared events in April 2017 to "the situation of 2003, when the USA, the UK and several of their allies invaded Iraq without the UN Security Council's approval – a grave violation of international law – but at that point they at least tried to show some material evidence."[392]
  •   Turkey – The Davutoglu Government called on the Grand National Assembly of Turkey to approve measures that would grant extensive authority to the President to launch military operations in both Syria and Iraq, including the authority to send troops across the border, although it is unclear whether the Turkish leadership intends to act on that authority. President Recep Tayyip Erdoğan has urged the establishment of a no-fly zone by coalition forces in northern Syria.[393]
  •   United Kingdom – A spokesperson for British Prime Minister David Cameron said the UK would not rule out airstrikes in Syria against ISIL.[386] On 26 September 2014 Parliament voted 524 to 43 to approve action inside Iraq.[394] While visiting Iraqi Kurdistan in mid October, British Foreign Secretary Philip Hammond said he saw no immediate demand from U.S. and Arab militaries for Britain to extend its airstrikes to Syria.[395] British Defense Minister Michael Fallon said on 21 October that British Reaper drones and Rivet Joint surveillance aircraft would be starting intelligence-gathering missions in Syria "very shortly."[83]
  •   United States – In November 2019, President Donald Trump ordered U.S. troops to secure the oil fields in eastern Syria, then said any remaining U.S. troops in Syria were there "only for the oil", and that the U.S. was "keeping the oil".[314][396]
  •   United Nations – Ban Ki-moon, UN secretary-general, welcomed the airstrikes against militants in Syria, but noted that the involved parties "must abide by international humanitarian law and take all precautions to avoid and minimize civilian casualties".[397]
  •   Venezuela – At the 69th General Assembly of the United Nations, President Nicolas Maduro said "It's President Bashar al-Assad and the Syrian government which have stopped the terrorists" and continued by saying "Instead of bombing and bombing, we must make an alliance for peace".[398][399]

See also

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american, intervention, syrian, civil, closely, related, operations, iraq, american, intervention, iraq, 2014, 2021, chronological, guide, timeline, more, comprehensive, list, list, united, states, attacks, syria, during, syrian, civil, list, united, states, s. For the closely related operations in Iraq see American led intervention in Iraq 2014 2021 For a chronological guide see Timeline of the American led intervention in the Syrian civil war For a more comprehensive list see List of United States attacks on Syria during the Syrian civil war and List of United States special forces raids during the Syrian civil war American led intervention in the Syrian civil warPart of Operation Inherent Resolve the international military intervention against the Islamic State and the foreign involvement in the Syrian civil warTop Territorial map of the Syrian Civil War in September 2014Bottom Current territorial map of the Syrian Civil War Syrian Government Army Syrian National Army amp others Syrian Democratic Forces Tahrir al Sham ISIL For a more detailed up to date interactive map see here Date22 September 2014 present 8 years 7 months 3 weeks and 4 days LocationSyriaResult19 786 U S and allied airstrikes 38 over 16 000 hitting ISIL positions 39 Thousands of targets destroyed thousands of militants killed U S backed rebel training program 2014 2016 40 U S and allies supplying weapons and advisers to the Kurdish led Syrian Democratic Forces ISIL loses most of its territory in Syria by December 2017 41 ISIL suffers military defeat and loses almost all of its remaining territory in March 2019 42 U S led occasional strikes against the Syrian government Further decline of Russia United States relations 43 Turkey United States relations sour on rift over Kurdish forces 44 U S Army Marine and Special Operation forces deployed in Syria and the number of U S troops training local armed forces has dropped from 2 000 in 2017 to 900 in 2019 45 46 Death of ISIL s leader Abu Bakr al Baghdadi in October 2019 47 Death of ISIL s leader Abu Ibrahim al Hashimi al Qurashi in February 2022 48 BelligerentsCJTF OIRAir war and ground forces United States United Kingdom 1 France 2 Saudi Arabia 3 United Arab Emirates 4 3 Italy 5 Denmark 6 7 Jordan Airstrikes only citation needed Former participants Canada 2014 16 8 Bahrain 2014 16 Belgium 2014 17 9 Germany 2015 22 10 11 Qatar 2014 16 12 Morocco 2014 16 13 Australia 2014 17 14 Netherlands 2014 19 15 Local ground forces Syrian Democratic Forces YPG 16 YPJ Syriac Military Council Al Sanadid Forces Euphrates Volcano 2014 15 17 Revolutionary Commando ArmyLimited involvement Iraqi Kurdistan Only against ISIL Peshmerga 16 Islamic State of Iraq and the Levant 18 19 20 21 al Qaeda al Nusra Front 2014 17 22 23 Khorasan group 24 Rouse the Believers Operations Room 2018 present 25 Hurras al Din 26 27 2018 present Jund al Aqsa 28 2014 17 29 30 Turkistan Islamic Party 31 Islamic Front 2013 2015 Syrian Salvation Government 2017 present Ahrar al Sham Nov 2014 airstrikes intentionality disputed 32 33 Tahrir al Sham 2017 present Jaysh al Sunna 2015 17 34 Syrian Arab Republic 35 Russia Iran limited aircraft shoot downs 36 37 Supported by Kata ib Hezbollah limited 2019 and 2021 strikes Commanders and leadersJoe Biden since 20 January 2021 Donald Trump until 20 January 2021 Barack Obama until 20 January 2017 Chuck Hagel until 2015 Ashton Carter until 2017 James Mattis until 2019 Patrick M Shanahan until 23 June 2019 Mark Esper until 9 November 2020 Lloyd Austin since 22 January 2021 Mette Frederiksen since 27 June 2019 Lars Lokke Rasmussen until 27 June 2019 Helle Thorning Schmidt Mark Rutte Rishi Sunak since 25 October 2022 Liz Truss Until 25 October 2022 Boris Johnson until 6 September 2022 Theresa May until 24 July 2019 David Cameron until 13 July 2016 Stephen Hillier Scott Morrison since 24 August 2018 Malcolm Turnbull until 24 August 2018 Tony Abbott until 15 September 2015 Trevor Jones David Johnston Emmanuel Macron since 14 May 2017 Francois Hollande until 14 May 2017 Jean Yves Le Drian Pierre de Villiers King Abdullah II Abdullah Ensour King Salman King Abdullah 2015 Mohammad bin Salman King Mohammed VI Abdelilah Benkirane Bouchaib Arroub Mohamed bin Zayed since 14 May 2022 Khalifa Al Nahyan until 13 May 2022 Hamad bin Isa Al Khalifa Tamim Al Thani Hamad bin Ali Al Attiyah Salih Muslim Muhammad Masoud Barzani Olaf Scholz until January 2022 Angela Merkel until 8 December 2021 Annegret Kramp Karrenbauer Volker Wieker Stephen Harper until November 2015 Justin Trudeau until February 2016 Thomas J Lawson until February 2016 Yvan Blondin until February 2016 Abu Ibrahim al Hashimi al Qurashi Leader Abu Bakr al Baghdadi Leader 49 50 Abu Alaa Afri Deputy Leader of ISIL 51 Abu Ayman al Iraqi Head of Military Shura 52 53 Abu Suleiman Replacement Military Chief 53 Abu Omar al Shishani Chief commander in Syria 54 55 56 57 Abu Khayr al Masri al Qaeda deputy leader 58 59 Abu Humam al Shami al Nusra Military Chief and subsequent leader of Hurras al Din 60 Abu Mohammad al Julani Emir of Al Nusra front 2012 2016 Abu Hajer al Homsi top al Nusra military commander 61 Abu Firas al Suri al Nusra Spokesman 62 63 Abu Muhammed al Ansari al Nusra Emir of the Idlib Province Ahmad Salama Mabruk al Nusra senior commander 64 Muhsin al Fadhli Leader of Khorasan 65 66 67 Sanafi al Nasr 68 David Drugeon 66 69 Said Arif Jund al Aqsa Military Chief 28 Abu Omar al Turkistani TIP and al Nusra military commander 31 Abu Yahia al Hamawi Emir of Ahrar al Sham 2015 2017 70 Abu Jaber Shaykh Emir of Ahrar al Sham 2014 2015 Emir of Tahrir al Sham 2017 71 72 Abu Mohammad al Julani Emir of Tahrir al Sham 2017 present Bashar al Assad Vladimir PutinStrengthCoalition forces Coalition forces air United States USS George H W Bush carrier strike group 73 USS Carl Vinson carrier strike group From 16 Oct to Present 74 USS Arleigh Burke 73 USS Philippine SeaTomahawk missiles 75 Fighter aircraftF 22 Raptor 76 F 16 Fighting Falcon 73 F 15 Eagle 73 FA 18 Super Hornet 73 Bomber aircraftB 1 Lancer 73 Ground attack aircraftA 10 Thunderbolt 77 Electronic warfare aircraftEA 18G Growler citation needed EA 6B Prowler 78 DronesMQ 1 Predator 79 Bahrain 2 F 16s 80 France 1 aircraft carrier Charles de Gaulle 81 24 Rafale fighters 81 8 Super Etendard fighters 81 3 Mirage 2000D fighters 81 3 Mirage 2000N fighters 81 1 Atlantique 2 maritime patrol aircraft 82 Germany 1200 troops 10 6 Panavia Tornado RECCE jets 10 1 Airbus A310 MRTT for in flight refueling 10 Jordan 20 F 16s Qatar 2 Mirage 2000s 80 Saudi Arabia 4 F 15s 80 United Arab Emirates 4 F 16s 80 United Kingdom 3 Surface Warships2 Submarines15 Eurofighter Typhoons9 Panavia Tornado Aircraft10 MQ 9 Reaper Drones1 ISR Aircraft3 RC 135 83 MQ 9 Reaper 84 Denmark 7 F 16s in Iraq and Syria pulled out 85 1 frigate 86 Netherlands 4 F 16s 80 Coalition forces ground Iraqi Kurdistan 152 Peshmerga soldiers 87 Unknown amount of artillery 87 United States 4 000 Special Forces and Rangers in Sept 2017 45 88 89 90 450 Marines with 18 artillery pieces 91 France 200 special forces 92 Local forces YPG 65 000 93 Free Syrian Army 60 000 May 2015 estimate 94 Islamic State of Iraq and the Levant Around 100 000 fighters according to Iraqi Kurdistan Chief of Staff 95 3 MiG 21 or MiG 23 aircraft 96 97 At least a few hundred tanks 98 99 2 drones 100 101 102 al Qaeda Khorasan 50 103 Jund al Aqsa 2 100 104 Islamic Front Ahrar al Sham 26 000 30 000 105 106 Syrian Salvation Government Tahrir al Sham 31 000 2017 107 20 000 30 000 2018 108 Syrian Arab Republic 180 000 soldiers 109 Casualties and lossesUnited States 10 servicemen killed 110 111 112 17 Government contractors killed 112 1 V 22 Osprey crashed 113 5 combat drones lost 114 115 116 Jordan 1 pilot executed 117 1 F 16 crashed 118 2 drones lost 119 United Kingdom 1 serviceman killed 120 2 SAS operators wounded 121 France 1 serviceman killed 122 Islamic State of Iraq and the Levant At least 9 158 killed 123 per Syrian Observatory for Human Rights SOHR al Qaeda Al Nusra Front 349 killed 123 124 per SOHR 125 Hurras al Din 50 killed 25 26 27 per SOHR Islamic Front Ahrar al Sham 3 killed per SOHR 123 126 127 Jaysh al Sunna 10 killed per SOHR 123 Syrian Salvation Government Tahrir al Sham 6 killed 128 Syrian Arab Republic 169 soldiers and militiamen killed per SOHR 123 Up to 23 Russian paramilitary forces killed per SOHR 129 130 3 tanks destroyed 131 132 133 10 aircraft destroyed 134 135 1 SAM battery destroyed 136 2 drones lost 137 138 3 847 civilians killed by Coalition airstrikes in Syria per SOHR 139 123 140 6 100 civilians killed by ISIL in Syria and up to 3200 missing prisoners of ISIL per SOHR 141 Over 420 000 civilians displaced or fled to other countries 142 143 Number of militants killed possibly higher due to them covering up their losses 144 The American led intervention in the Syrian Civil War refers to the American led support of Syrian rebels and the Syrian Democratic Forces SDF during the course of the Syrian civil war including Operation Inherent Resolve the active military operation led by the United States and involving the militaries of the United Kingdom France Jordan Turkey Canada Australia and others against the Islamic State IS and al Nusra Front since 2014 Beginning in 2017 18 the U S and its partners have also targeted the Syrian government and its allies via airstrikes and aircraft shoot downs mainly in defense of either the SDF or the Revolutionary Commando Army opposition group based in al Tanf Shortly after the civil war broke out in 2011 the U S initially supplied the rebels of the Free Syrian Army with non lethal aid e g food rations and pickup trucks but quickly began providing training money and intelligence to selected Syrian rebel commanders At least two U S programs attempted to assist the Syrian rebels including a 2014 Pentagon program that planned to train and equip 15 000 rebels to fight the IS which was canceled in 2015 after spending 500 million and producing only a few dozen fighters 145 A simultaneous 1 billion covert program called Timber Sycamore conducted by the Central Intelligence Agency CIA aimed at fighting Syrian President Bashar al Assad was more successful but was decimated by Russian bombing and canceled in mid 2017 by the Trump administration 145 The Obama administration began surveillance missions on Islamic State positions in Syria in September 2014 146 On 22 September 2014 the U S Bahrain Jordan Qatar Saudi Arabia and the United Arab Emirates UAE began to attack ISIL forces inside Syria 18 147 as well as the Khorasan group in the Idlib Governorate west of Aleppo and the al Nusra Front around Raqqa 24 148 as part of the international military intervention against ISIL The U S missile strike on Shayrat Airbase on 7 April 2017 was the first time the U S deliberately attacked Syrian government forces 149 and marked the start of a series of direct military actions by U S forces against the Syrian government and its allies that occurred during the periods of May June 2017 and February 2018 In mid January 2018 the Trump administration indicated its intention to maintain an open ended military presence in Syria to counter Iran s influence and oust Syrian president Bashar al Assad 150 In early September 2018 the U S began implementing a new strategy that sought to indefinitely extend its military effort launching a major diplomatic push to achieve American objectives in Syria 151 However on 19 December President Trump unilaterally ordered the withdrawal of the 2 000 2 500 American ground troops in Syria which was initially set to take place in a 90 day period and to be completed in 2019 152 153 154 With proliferating concerns over a potential power vacuum the U S announced on 22 February 2019 that instead of a total withdrawal a contingency force of around 400 American troops would remain garrisoned in Syria indefinitely and that their withdrawal would be gradual and conditions based marking a return to a policy of open ended American military presence in the country 155 156 In 2019 the coalition saw decisive results in its intervention against the IS the terror group lost its last remaining territory in Syria during the Battle of Baghuz Fawqani 157 and its leader Abu Bakr al Baghdadi died during a U S special forces raid in Barisha Idlib in October 2019 158 The Trump administration ordered all U S forces to withdraw from Rojava in early October ahead of a Turkish incursion into the region a controversial move widely seen as a reneging of the U S s alliance with the SDF in favor of NATO ally Turkey 159 The decision was however partially reversed by November 2019 as U S troops instead repositioned to eastern Syria reinforcing their presence in the al Hasakah and Deir ez Zor governorates with the subordinate mission of securing SDF controlled oil and gas infrastructure from the ISIL insurgency and the Syrian government 160 On 23 November 2019 the head of U S Central Command stated there was no end date on the U S s intervention in Syria 161 As of February 2021 there are around 900 U S soldiers operating in Syria according to the U S Department of Defense 46 Contents 1 Background 1 1 Pre coalition arming and training of the Syrian opposition 1 2 July 2014 rescue mission 1 3 Surveillance flights over Syria 2 U S led coalition against ISIL 2 1 Support for Kurdish led ground forces 2 2 Coalition arming and training of the Syrian opposition 3 Multinational air war 3 1 Contributing countries 3 2 U S airstrikes 3 2 1 Airstrikes on the Khorasan Group 4 Ground operations 4 1 2015 16 4 2 2017 18 4 3 2019 drawdown of U S ground forces 4 3 1 Withdrawal from north Syria 4 4 2019 20 Eastern Syria redeployment 4 5 2021 present Continued Iranian U S proxy conflict 5 Turkish involvement 5 1 Northern Syria Buffer Zone 6 Reports of civilian casualties and war crimes 7 Results 8 Reactions 8 1 Domestic U S approval 8 2 Syrian reactions 8 3 International reactions 9 See also 10 References 11 External linksBackground EditFurther information Middle Eastern foreign policy of the Barack Obama administration Syria Arab Spring Arab Winter and Syrian Civil War United States diplomatic cables leaked by WikiLeaks have been seen as showing that regime change in Syria may have been a covert foreign policy goal of the U S government in the years leading up to the civil war even during the period when President Barack Obama was publicly engaging with Syria s Bashar Al Assad A 2006 memorandum by U S diplomat William Roebuck of the embassy in Damascus stated We believe Bashar s weaknesses are in how he chooses to react to looming issues both perceived and real such as the potential threat to the regime from the increasing presence of transiting Islamist extremists This cable summarizes our assessment of these vulnerabilities and suggests that there may be actions statements and signals that the USG can send that will improve the likelihood of such opportunities arising These proposals will need to be fleshed out and converted into real actions and we need to be ready to move quickly to take advantage of such opportunities Many of our suggestions underline using Public Diplomacy and more indirect means to send messages that influence the inner circle According to Seymour Hersh and activist Robert Naiman Roebuck who went on to be charge d affairs of the Libyan embassy under Obama also considered the advantages of promoting religious sectarianism in Syria 162 163 Following the start of the Arab Spring in 2011 protests in Syria against the Assad regime were violently suppressed and a civil war began 164 By 2012 there were several armed opposition groups operating in the country including the Free Syrian Army formed in July 2011 by officers who defected from the Syrian Armed Forces In 2012 the al Nusra Front was established by the Islamic State of Iraq as the official branch of al Qaeda in Syria The al Nusra Front was eclipsed by its own creator and al Qaeda severed its ties to the Islamic State of Iraq and the Levant in February 2014 after an eight month power struggle 165 Pre coalition arming and training of the Syrian opposition Edit Further information Timber Sycamore CIA activities in Syria and Foreign involvement in the Syrian Civil War United States At the direction of U S President Barack Obama the Central Intelligence Agency CIA was put in charge of operations worth about 1 billion annually to arm anti government forces in Syria 166 167 168 169 an operation which formally began in 2013 more than two years after the start of the civil war in 2011 Prior to 2013 the CIA only supplied certain rebel groups of the Free Syrian Army with non lethal aid but later began providing training funding and intelligence to selected rebel commanders 170 171 172 Although a former intelligence adviser who spoke to journalist Seymour Hersh claimed the CIA had been facilitating the flow of arms from Libya to Syria in collaboration with the UK United Kingdom Saudi Arabia and Qatar since 2012 or 2011 173 the first confirmed CIA weapons arrived in Spring 2014 There were just a handful delivered to only one rebel group carefully vetted by the CIA The group Harakat Hazm or the Steadfast Movement showed off the new weapons system by posting the first successful strike on YouTube in April 174 Another of the groups being vetted was the Islamist Army of Mujahedeen formed in January 2014 specifically to combat ISIL 174 175 However there were indications that the Army of Mujahedeen was still being vetted in September 2014 176 In addition to the covert CIA program 177 on 17 September 2014 the U S House of Representatives voted to authorize the executive branch to overtly train and equip Syrian rebels against ISIL forces at a cost of 500 million 178 179 180 July 2014 rescue mission Edit Main article 2014 American rescue mission in Syria Following the abduction of a number of foreigners in Syria on 4 July 2014 the U S carried out an operation to rescue foreign hostages being held by ISIL U S airstrikes were conducted against an ISIL military base known as the Osama bin Laden Camp while at the same time two dozen U S special forces soldiers parachuted from helicopters near an ISIL held building thought to be for high value prisoners No prisoners were found in the building and the soldiers were quickly engaged by ISIL forces dispatched from Raqqa which started a three hour firefight 181 U S forces concluded that the hostages were no longer at the site and abandoned the rescue attempt At least five ISIL fighters were killed and one U S soldier was wounded Jordanian forces were also reportedly involved in the operation with one Jordanian soldier reportedly wounded but Jordanian involvement was not confirmed Later on it was reported that the hostages had been moved 24 hours before the attempted rescue 181 Following the mission it remained unclear whether the operation failed due to bad intelligence or whether ISIL forces were alerted in advance of the mission 182 In the aftermath of the rescue mission and purportedly as a response to airstrikes in Iraq ISIL beheaded three hostages over a one month period Americans James Foley 181 and Steven Sotloff on 19 August and 2 September respectively citation needed and Briton David Haines on 13 September 183 Surveillance flights over Syria Edit On 26 August 2014 the U S began conducting overt surveillance flights including drones over Syria to gather intelligence on ISIL targets The flights began gathering intelligence that would aid future airstrikes even though airstrikes were not yet authorized at that point 184 No approval was sought from the Assad government for flights entering Syrian airspace 185 U S led coalition against ISIL EditMain article International military intervention against the Islamic State International coalitions against ISIL The United States had since 2014 led efforts to establish a global coalition to counter ISIL 186 On 5 September 15 September 187 and 3 December 2014 various sets of countries came together to discuss concerted action against ISIL Present at all three meetings were the United States United Kingdom France Germany Italy Canada Turkey and Denmark The coalition of 5 September 10 countries decided to support anti ISIL forces in Iraq and Syria 188 On 10 September 2014 U S president Barack Obama announced a comprehensive strategy to counter ISIL that in concert with coalition partners lt gt will defeat ISIL and deny them safe haven 189 The coalition of 3 December 2014 sixty countries that styled itself as the Global Coalition to Counter the Islamic State of Iraq and the Levant ISIL 190 agreed on a many sided strategy against ISIL including cutting off ISIL s financing and funding and exposing ISIL s true nature 190 As of March 2015 the U S led coalition comprised over sixty countries that contributed in various ways to the effort 186 Support for Kurdish led ground forces Edit As the Siege of Kobani continued there were growing calls to also arm the YPG also known as the People s Protection Units a Kurdish fighting force in Syria heavily involved in the defense of Kobani 191 On 20 October 2014 the Turkish foreign minister Mevlut Cavusoglu announced that the Turkish government would be allowing Peshmerga from the Iraqi Kurdistan Regional Government to cross their border into Kobani to support Kurdish fighters 192 The change in policy came after the Turkish government had refused to allow Kurdish fighters and supplies to pass through the border to YPG units in Kobani as it viewed the YPG as an offshoot of the PKK 193 On 28 October Peshmerga from the Iraqi Kurdistan Regional Government departed Erbil to travel to Turkey and eventually to Kobani 194 A total of 152 soldiers were deployed starting with forty vehicles carrying weapons artillery and machine guns along with 80 Peshmerga forces who crossed the border into Turkey by land with the heavy weapons and then drove to the border near Kobani 194 The other 72 soldiers in the contingent flew to Turkey and rejoined the rest of the contingent on 29 October 194 By the start of November 152 Kurdish Peshmerga from Iraq and 50 Free Syrian Army fighters had crossed the border into Kobani with heavy weapons small arms and ammunition 16 87 On 20 October 2014 the United States began airdropping supplies to Syrian Kurdish forces including the YPG that were besieging ISIL controlled Kobani 195 Prior to 20 October the United States and its anti ISIL coalition partners in Syria had not provided any supplies to Kurdish forces in their fight against the jihadist group 195 Much of the reason for the U S airdropping supplies was due to the Turkish government s refusal to allow supplies to pass through their border into Kobani The U S specifically airdropped weapons ammunition and medical supplies supplied by Iraqi Kurdistan intended to supply the Kurdish forces in Syria 195 On 21 October a video was released by ISIL showing what it claimed was a bundle of airdropped small arms ammunition and other supplies from the United States The Pentagon said it was analyzing the video and could not at the time confirm whether the video was authentic but that the materials were similar the video would subsequently be analyzed by the Department of Defense to verify its authenticity 196 On 22 October the Pentagon confirmed that one of its airdrops had been intercepted by ISIL elements but downplayed the incident saying that it most likely would not give ISIL any real advantage in their overall operations 197 Coalition arming and training of the Syrian opposition Edit Main article Syrian Train and Equip Program In October 2014 the Turkish government agreed to help train and equip some moderate Syrian rebels in Turkey 198 By January 2015 the United States was set to send 400 troops and hundreds of support staff to countries neighboring Syria in order to train 5 000 opposition soldiers a year for the next three years 199 The countries taking part in the train and equip program were to include Jordan Qatar and Saudi Arabia as well as Turkey 200 The groups that were expected to be armed and trained by the U S government included fighters from the Free Syrian Army 201 The Pentagon confirmed that it had selected 1 200 Syrian opposition members to begin training in March 2015 with 3 000 to complete training by the end of 2015 200 The successful experience in Kobani had informed U S policy in regard to arming Syrian opposition groups other than the Kurdish YPG with plans to give other groups technicals equipped with radio and GPS equipment to call in airstrikes 177 John R Allen President Obama s envoy to the international coalition against ISIL stated It is clearly part of our plan that not only we will train them and we will equip them with the latest weapons systems but we will also protect them when the time comes 202 In March 2015 the United Kingdom announced that it was sending around 75 military instructors to train Syrian opposition forces 203 204 The train and equip program started on 9 May 2015 205 On 25 May Turkey and the U S agreed in principle on the necessity to support these forces with air support 206 However only about 200 rebel fighters actually began training the majority of whom left after being required to agree to fight only against ISIL and not the Assad government 207 By mid 2015 only a group of 54 such fighters Division 30 had been deployed which was quickly routed in an ambush by al Nusra 208 and a further 100 had been thus far finished training in Jordan 209 In September 2015 it was reported that a further 100 120 were being trained in a second wave 210 with 75 more Division 30 fighters reported to have re entered Syria at the end of the month they were immediately attacked by al Nusra 211 Jane s Defence Weekly reported that in December 2015 the U S shipped 994 tonnes of weapons and ammunition including packaging and container weight generally of Soviet type equipment from Eastern Europe to Syrian rebel groups under the ongoing CIA Timber Sycamore operation A detailed list of weapon types and shipment weights had been obtained from the U S government s Federal Business Opportunities website 212 213 As of July 2016 extensive arms shipments were continuing 214 215 216 It was reported in July 2017 that the Donald Trump administration decided to phase out the CIA program to equip and train anti government rebel groups 217 218 219 Multinational air war EditFurther information Authorization for the Use of Military Force Against the Government of Syria to Respond to Use of Chemical Weapons USS Carl Vinson and support ships deployed for combat operations in Syria and Iraq 2014 Contributing countries Edit Australia Operation Okra Bahrain Belgium Canada Operation Impact In Syria Airstrikes ended February 2016 220 221 France Operation Chammal Germany Operation Counter Daesh Operations in Syria ended January 2022 222 Netherlands Dutch military intervention against ISIL and Dutch involvement in the Syrian Civil War Airstrikes in Syria began January 2016 anti ISIL operations ended January 2019 Jordan Jordanian intervention in the Syrian Civil War Qatar Qatari involvement in the Syrian Civil War Saudi Arabia Saudi Arabian involvement in the Syrian Civil War Turkey Turkish involvement in the Syrian Civil War and Islamic State related terrorist attacks in Turkey United Arab Emirates United Kingdom Operation Shader Intervention in Syria United States Leader Operation Inherent Resolve U S airstrikes Edit Tomahawk missiles being fired from the warships USS Philippine Sea and USS Arleigh Burke at ISIL targets in the city of Raqqa An F A 18 Super Hornet taking off from USS Carl Vinson before carrying out strikes on ISIL targets in Syria In his address to the nation on 10 September 2014 U S President Obama announced his intention to bomb ISIL targets in Syria and called on Congress to authorize a program to train and arm rebels who were fighting ISIL and the Syrian forces of Bashar al Assad 223 For the first time he authorized direct attacks against the militant group in Syria In his address he said the United States were going on offensive launching a steady relentless effort to take out the group wherever they exist Obama also announced creating of a broader coalition against ISIL 224 Commenting on Obama s address Russian Foreign Ministry spokesman Alexander Lukashevich ru opposed the U S intervention against ISIL in Syria without the consent of the legitimate government and said that this step in the absence of a UN Security Council decision would be an act of aggression a gross violation of international law Ali Haidar Syrian minister of national reconciliation said that any action of any kind without the consent of the Syrian government would be an attack on Syria 225 On 17 September the U S House of Representatives approved Obama s plan to train and arm the Syrian rebels in their fight against ISIL In a statement following the House vote Obama said that the United States would not send military troops to Syria 226 The Senate gave final congressional approval to Obama s proposal the next day 227 The U S did not request permission from the Syrian government nor did it coordinate its actions with the Syrian government provide direct notification to the Syrian military or give indication of timing on specific targets but it did notify the Syrian U N representative which the Syrian government confirmed 228 Before the airstrikes began the United States also informed Iran the Assad government s largest regional ally of their intention to launch airstrikes It did not share specific timing or targets of strikes with the Iranian government but reportedly assured it that the US would not strike any Syrian government targets 229 See also Battle of Khasham On 8 April 2018 U S President Donald Trump called Syrian President Bashar Al Assad Animal Assad following suspected chemical attack carried out in the Syrian city of Douma 230 On 14 April the United States France and the United Kingdom carried out missile strikes against Syria On 30 May President Al Assad responded to the insult by saying What you say is what you are 231 It was reported in June 2018 that the 441st Air Expeditionary Squadron reportedly maintained an unpaved runway in Sarrin Raqqa Governorate 232 233 234 See also 2019 U S airstrike in Baghuz On 14 June 2020 a U S coalition drone strike killed Guardians of Religion Organization leaders Khalid al Aruri and Bilal al Sanaani who were driving a vehicle in Idlib 235 There was reportedly no explosion and the target vehicle was relatively intact with the roof and windshield impacted from above and one side shredded leading observers to suggest the munition used was probably the kinetic Hellfire R9X missile that uses blades to eviscerate its target rather than an explosive warhead 236 On 24 June Abu Adnan al Homsi logistics and equipment commander at the Guardians of Religion Organization was also killed by a U S drone strike 237 On 25 February 2021 U S military airstrikes commanded by U S president Joe Biden destroyed multiple facilities related to pro Iranian militias including Kata ib Hezbollah and Kata ib Sayyid al Shuhada at a border control point near al Hurri village Abu Kamal District in retaliation to Erbil missile attacks 238 239 At least 17 militants were reported killed in the strikes although the militias only confirmed one 240 The strikes were conducted by two F15s dropping Joint Direct Attack Munitions JDAM and was the first overt military operation ordered by the Biden administration 241 On 28 June 2021 the U S military conducted airstrikes on facilities purportedly used by Iranian supported militias near the Iraq Syria border 242 However the SOHR stated that at least nine Iran backed Iraqi militia fighters died and many others were injured 243 Airstrikes on the Khorasan Group Edit F A 18 Hornets take off from USS George H W Bush to strike ISIL targets in Syria One of the groups targeted by U S airstrikes was the Khorasan Group an extremist group of suspected al Qaeda core members who were alleged to have been plotting an attack against the U S and other Western nations 228 The strikes targeted Khorasan training camps explosives and munitions production facilities communications facilities as well as command and control facilities The group has been claimed to possess advanced bomb making skills and their plot is claimed to involve a bomb made of a nonmetallic device such as a toothpaste container or clothes dipped in explosive material 244 The group is reportedly led by Muhsin al Fadhli a leader of al Qaeda and a close confidant of Osama bin Laden 244 Intelligence officials expressed concern that the group may include militants who were taught by Ibrahim al Asiri the chief bomb maker for al Qaeda in the Arabian Peninsula who is known for his sophisticated bomb making techniques that nearly downed two Western airliners 244 Later statements by government officials indicated that the threat of a plot may have been less severe than initially reported 245 246 One official indicated that there did not yet seem to be a concrete plan in the works 245 while another told The Guardian that there was no indication of an imminent domestic threat from the group at the time the United States began bombing 246 On 6 November a second round of airstrikes was launched against Khorasan and al Nusra in northwestern Syria along with Ahrar ash Sham at its headquarters in Idlib whose leadership had been infiltrated by al Qaeda 33 On 13 November 2014 the US launched a third set of airstrikes against Khorasan 247 On 19 November the US carried out another airstrike on Khorasan near Hazm which struck and destroyed a storage facility associated with the group 248 On 1 December the US carried out another airstrike on Khorasan near Aleppo 249 On 24 March 2015 it was revealed that the US airstrikes on Khorasan had killed 17 militants from the group 250 On 8 July 2015 a US airstrike near the town of Sarmada in Idlib Syria killed Muhsin al Fadhli the leader of Khorasan 67 Ground operations EditSee also Al Tanf U S military base and List of United States special forces raids during the Syrian civil war Initially coalition leaders including U S President Obama said their ground forces would not be used in the fight against ISIL either in Iraq or Syria unless they were local coalition forces 251 In Iraq thousands of coalition troops from the U S and other nations had been deployed in an advisory capacity in Syria no ground troops from the coalition were deployed in the beginning of the intervention 252 253 2015 16 Edit Further information Timeline of the American led intervention in the Syrian Civil War 2015 and Timeline of the American led intervention in the Syrian Civil War 2016 U S backed Syrian Democratic Forces soldiers in Manbij 2016 In November 2015 the Obama administration began the deployment of U S special forces to Syria with the mission of assisting rebel forces in their fight against ISIL President Obama then ordered several dozen Special Operations troops into Rojava in northern Syria to assist local fighters battling ISIL authorizing the first open ended mission by American ground forces into the country 254 ISIL s deputy leader in Syria Abu Ali al Anbari was killed by JSOC special forces operatives in March 2016 in eastern Syria near the Syrian Iraqi border while he and three other ISIL members were traveling in a vehicle coming from Raqqa The US Special Forces ordered him to exit the vehicle intending to arrest him When he refused and pulled out an assault rifle instead US forces fired at the vehicle killing him and the other passengers on board US commandos also seized electronics and other documents during the operation for intelligence purposes 255 In March 2016 King Abdullah of Jordan said that British forces had helped in the building up of a mechanized battalion in southern Syria consisting of tribal fighters to combat the Syrian Army 256 On 17 March 2016 the day after the declaration of the Federation of Northern Syria U S Defense Secretary Ashton Carter praised the Syrian Democratic Forces as having proven to be excellent partners of ours on the ground in fighting ISIL We are grateful for that and we intend to continue to do that recognizing the complexities of their regional role 257 U S Army Special Forces in Raqqa May 2016 one is wearing a Kurdish YPJ patch During the SDF s May 2016 offensive against ISIL in Northern Raqqa U S Special Forces were widely reported and photographed to be present with some of them wearing badges of the Kurdish YPG and YPJ on their uniforms 258 On 21 May Joseph Votel commanding general of U S Central Command completed a secret hours long trip to northern Syria to visit several locations where there were U S special operations forces and meet with local forces the U S was helping train to fight ISIL The visit came as the first of 250 additional U S special operations forces were beginning to arrive in Syria to work with local forces The commander overseeing the war in Syria at the end of a long Saturday spent touring SDF bases said We do absolutely have to go with what we ve got 259 In September 2016 the U S spokesman for the Combined Joint Task Force Operation Inherent Resolve CJTF OIR confirmed that the SDF including the YPG is also part of the vetted forces in the train and equip program and would be supplied with weapons The President of Turkey Recep Tayyip Erdogan condemned this and claimed that the SDF are endangering our future 260 In October 2016 U S Army Lt Gen Stephen J Townsend the commander of the international coalition against ISIL said that the SDF would lead the impending assault on Raqqa ISIL s then stronghold and capital and that SDF commanders would plan the operation with advice from American and coalition troops 261 From November 2016 more than 300 U S Special Operations Forces were embedded to train and advise SDF fighters in the Raqqa offensive 262 2017 18 Edit Further information Timeline of the American led intervention in the Syrian Civil War 2017 and Timeline of the American led intervention in the Syrian Civil War 2018 Kurdish troops and U S armored vehicle in Al Hasakah May 2017 U S Army 310th Engineer Company maintaining a Mabey Logistic Support Bridge during the Battle of Raqqa 29 July 2017 source source source source source source source source source source U S Marines and Army Special Forces operating in support of the SDF in Syria October 2018 In March 2017 the Trump administration deployed an additional 400 U S Marines to Syria to expand the fight against ISIL in the Raqqa offensive where they could provide artillery support for U S backed local forces that were preparing an assault on Raqqa to liberate the city from IS militants The deployment marked a new escalation in the U S s war in Syria and put more conventional U S troops in the battle that until then had primarily used Special Operations units The 400 Marines were part of the 11th MEU from the Battalion Landing Team 1st Battalion 4th Marines They manned an artillery battery of M 777 Howitzers whilst additional infantrymen from the unit provided security resupplies were handled by part of the expeditionary force s combat logistics element 263 During the Raqqa campaign alone this small artillery battalion fired over 40 000 shells including 34 033 155 mm more than were used in the entire 2003 invasion of Iraq and only 20 000 fewer than all those fired by the U S military in Operation Desert Storm 264 In March 2018 SDF press secretary in Deir ez Zor Mehdi Kobani reportedly told Sputnik Turkiye that U S forces were building a large military base in the oil rich al Omar region of Deir ez Zor as new equipment had been reportedly arriving to U S bases in Syria The al Omar oilfield is the largest oil deposit in Syria and was captured by the SDF during their campaign against ISIL in October 2017 265 266 2019 drawdown of U S ground forces Edit Further information Timeline of the American led intervention in the Syrian Civil War 2019 On 19 December 2018 President Donald Trump announced that he ordered the pullout of all 2 000 2 500 U S troops operating in Syria though no clear timetable was given 267 A day later after failing to convince Trump to reconsider his decision to withdraw all American troops from Syria Jim Mattis announced his resignation as Secretary of Defense 268 On 3 January 2019 Trump described Syria as sand and death in defense of troop withdrawal 269 U S operations in al Tanf would continue indefinitely 270 On 16 January 2019 a suicide bombing claimed by ISIL in the SDF controlled town of Manbij killed four U S personnel and injured three servicemen making it the deadliest attack on Coalition forces in the country since the intervention 271 272 273 The ISIL attack drew a second round of criticism of the U S president s withdrawal order with critics linking the attack with an emboldening of ISIL terror and insurgent tactics due to the announcement of a U S pullout despite the group s continued loss of territory in Syria 274 President Trump offered condolences to the families of the slain American citizens on 17 January while he reaffirmed his policy of withdrawing troops 275 Trump paid tribute to the fallen Americans during a trip to Dover Air Force Base in the U S state of Delaware on 19 January where their remains were received 276 On 21 January an ISIL SVBIED targeted a U S convoy accompanied by SDF troops on the Shadadi Al Hasakah road in Al Hasakah province killing five SDF personnel Witnesses said the SVBIED rammed into an SDF vehicle by a checkpoint held by Kurdish forces a dozen kilometers outside Shadadi as the U S convoy drove past No Americans were harmed 277 CNN reported on 24 January that additional U S troops were moved to Syria to help provide security for the pullout of equipment and personnel as they are moved out via air and land routes U S Department of Defense officials said the additional security forces would move around Syria to different locations as needed and may move in and out of the country at times Troop numbers would also fluctuate as American presence gradually declines Defense officials declined to give specifics on numbers locations or timetables citing security concerns 278 Local sources reported to Anadolu Agency on 28 January that around 600 U S troops had allegedly entered eastern Syria from western Iraq to help with the withdrawal process arriving at discreet bases in Harab Isk and Sarrin villages set to be used as main evacuation centers during the withdrawal The news agency added that the American controlled airfields in Rmeilan and Tell Beydar would be used to airlift heavy weapons and equipment from the country the Coalition itself did not confirm these reports 279 By the end of January 2019 according to two U S officials more than 10 percent of American equipment and supplies had been removed from Syria with 3 000 additional personnel brought into the country to facilitate the draw down of forces By 9 February hundreds of U S airstrikes and ground support for the SDF continued as the Kurdish led force began its final assault on the last ISIL holdouts trapped in a small cluster of hamlets in eastern Syria including Al Baghuz Fawqani and southern Al Marashidah no larger than a few square miles U S officials including President Donald Trump believed the SDF would be able to defeat the remaining diehard ISIL fighters in days bringing an end to ISIL s claim of a territorial caliphate 280 On 18 February Commander in Chief of the SDF Mazlum Kobane expressed hopes the U S would halt its total pullout Kobane said there were discussions about perhaps French and British troops supporting them but demanded 1 000 1 500 U S troops stay in Syria to provide air cover air support and a force on the ground to help the SDF in its ongoing fight against ISIL CENTCOM commander Gen Joseph Votel reiterated the U S withdrawal was continuing 281 With the general withdrawal continuing the White House announced late on 21 February that 200 residual U S troops would remain in Syria as a peacekeeping force The peacekeeping deployment would be indefinite 282 The next day it was revealed the actual number was 400 troops not 200 as half would be based in Rojava and half at al Tanf Officials stated it was a part of an initiative to get NATO allies to commit to a multinational observer force that would establish a safe zone in Rojava to keep the Kurds and Turks from clashing to prevent pro Syrian government forces from attacking the Kurds and to keep up pressure to prevent an ISIL resurgence The U S was not seeking a United Nations mandate for the deployment and did not envision asking NATO to sponsor the mission an administration official said at the time adding that the troops would not technically be peacekeepers a term that carries restricted rules of engagement 283 On 7 March Gen Joseph Votel confirmed that U S forces were in no rush to pullout by a specific date instead saying the completion of the withdrawal was conditional on ISIL no longer posing a security threat to U S forces and their allies 284 By late March the U S continued to stretch the timetable for the pullout On 29 March U S officials reportedly said the Pentagon s latest plans called for cutting its combat force in northeastern Syria roughly in half by early May 2019 or to about 1 000 troops and would then pause pullout operations The military would then reduce the number of forces every six months depending on conditions on the ground until it reaches the 400 troops previously approved by the president Under this plan the lowest troop numbers would not be reached until autumn 2020 The longer timetable would provide the U S more time to negotiate and work out details over the planned multinational safe zone along Turkey s border Officials cautioned that the timetable was open ended and still subject to change with factors ranging from allied troop contributions to new orders from the president himself 285 In early May video emerged online of U S forces firing upon an alleged Syrian government barge ferrying oil supplies in the Middle Euphrates River Valley The video was posted on Facebook by the pro SDF Deir Ezzor Media Center 286 Withdrawal from north Syria Edit Further information Timeline of the American led intervention in the Syrian Civil War October 2019 U S withdrawal from north Syria return amp al Baghdadi s death Following the collapse of the August October 2019 Northern Syria Buffer Zone agreement and subsequent Turkish offensive against the SDF U S ground forces began deliberately withdrawing from many of their bases outposts and camps in north Syria around 6 October including Manbij 287 and the Lafarge cement factory upon precipitous orders from the Donald Trump administration 288 Senior U S military officials said that troops abandoned bases as far south as Tabqah and Raqqa and consolidated all personnel and essential equipment near Kobani to await airlifts and convoys out of the country throughout coming weeks 289 A U S official at the time said the 1 000 U S troops being withdrawn will mostly reposition in western Iraq but also possibly Kuwait and Jordan From Iraq U S forces could conduct cross border operations against ISIL in Syria as they had done so in the past 290 source source source source source source source source source source U S soldiers remove equipment and prepare to retrograde from their base at the Lafarge cement factory in north Syria 15 October 2019 During the withdrawal which was described in news media as a scramble reports emerged showing that U S and SDF troops had hastily stripped their camps and bases of sensitive materials but left fortifications in place many of which became immediately occupied by Syrian government and Russian forces as they quickly moved into the region as part of a protection deal established on 13 October between the Assad government and Rojava Video emerged online of Russian troops reportedly exploring an abandoned U S outpost near Manbij 289 291 On 16 October two Operation Inherent Resolve F 15 jets bombed their section of the Lafarge cement factory base located between Kobani and Ayn Issa to destroy an ammunition cache and reduce the facility s military usefulness as Turkish backed militias advanced towards the area The location had been the headquarters of the de facto Defeat ISIS coalition in Syria Inherent Resolve spokesman Col Myles Caggins III said adding that No U S forces or equipment were ever in jeopardy and remain within separate secure facilities SDF personnel burned their part of the base before departing 292 On the same day President Trump commented on the developments by describing the Kurds as no angels and about Syria he said Syria may have some help with Russia and that s fine It s a lot of sand They ve got a lot of sand over there So there s a lot of sand there that they can play with 293 On 18 October after a ceasefire between Turkish and Kurdish forces was declared a day prior U S Defense Secretary Mark Esper stated that the withdrawal was continuing and that the U S would continue to communicate with both Turkey and the SDF A senior defense official stated that U S aircraft would continue to conduct intelligence missions over northeast Syria to monitor the situation there 294 In late October Esper said the U S forces leaving Syria would head into western Iraq But after Iraqi leaders said those troops can t stay there Esper said they will be deployed in Iraq only temporarily before returning to the U S 295 According to The New York Times citing U S Defense Department officials by 30 October at least half of the original 1 000 U S troops in Syria had withdrawn and was expected to be reduced to roughly 250 personnel largely concentrated in the Deir ez Zor region 296 On 31 October Syrian President Bashar Al Assad called President Trump as the best American president because he is the most transparent foe due to his audacity to take the Syrian oil 297 On 3 November 2019 U S and coalition forces departed their strategic military base near the town of Sarrin U S forces removed all their equipment and were seen leaving the base in a convoy of tens of trucks The base was one of the largest U S bases in Syria a logistics hub that assisted in the anti ISIL intervention 298 On 10 November U S Chairman of the Joint Chiefs of Staff Mark Milley stated that at least 500 600 U S troops would remain in Syria and will not exceed 1 000 personnel It was not clear if that estimate included the 200 troops at al Tanf 299 By mid November Russian and Syrian government forces had quickly filled the power vacuum left behind by the U S in much of northern Syria The U S had withdrawn from its logistics base in Kobani by 14 November with Russia announcing it would set up a new helicopter base in Qamishli the same day 300 On 17 November Russia s state owned Zvezda channel aired footage of armed Russian sappers and Military Police seizing control of the Kobani airbase days prior with choppers landing on the U S made airstrip there and the Russian flag seen hoisted over the fortification of which had been hastily stripped of essentials by coalition personnel only leaving behind toiletries sleeping facilities some exercise equipment and other small items 301 While Syrian government troops gradually re established its presence in the region Russia and Turkey continued to occupy and conduct patrols throughout north east Syria as well in accordance with the Sochi Agreement By 4 December the U S had completed its military pullback from northeastern Syria and had consolidated its troop presence in the country to a relatively static 600 personnel according to Mark Esper 302 The withdrawal from north Syria was partially carried out by the U S Army 103rd Expeditionary Sustainment Command s Syria Logistics Cell SLC a key component of the Army s 1st Theater Sustainment Command Special Operations Joint Task Force Operation Inherent Resolve and Combined Joint Task Force Operation Inherent Resolve 303 2019 20 Eastern Syria redeployment Edit Further information Eastern Syria insurgency and Oil production and smuggling in ISIL source A U S military convoy passes through Qamishli on 26 October 2019 amid the return of U S forces to oil fields in northeast Syria 4th Battalion 118th Infantry Regiment attached to 218th MEB at a staging area in Syria 10 November 2019 By 20 October 2019 296 after backlash from the U S Congress the Trump administration had conducted a partial reversal of its 6 October order to pullout 1 000 troops from Syria instead confirming a newly dedicated mission to guard oil and gas fields and related infrastructure in SDF controlled eastern Syria from ISIL insurgent attacks While U S forces continued to reduce its presence in northern Syria by the hundreds to avoid Syrian SDF and Turkish fighting the U S simultaneously shifted more resources south and east into the oil rich Deir ez Zor Governorate 296 Defense Secretary Mark Esper confirmed on 25 October that the U S would maintain a reduced presence in Syria and deny ISIS access to oil revenue 296 and in support of the mission mechanized and armored units would be deployed to eastern Syria to reinforce the American presence there 295 Throughout late October early November 2019 this contingent was reinforced with hundreds of new infantry troops joined by mechanized infantry Armored Brigade Combat Teams ABCTs in Bradley IFVs and according to unnamed sources potentially tanks redeployed from Iraq and Kuwait which was estimated to raise the number of U S troops in eastern Syria to around 500 at the time When coupled with the U S garrison at al Tanf the contingency force s numbers rise to a flexible 800 900 personnel 296 In Syria s Deir ez Zor Governorate which lies far to the North East of al Tanf the United States has stated that it will increase its presence in SDF controlled territory along the Eastern bank of the Euphrates river and also establish military bases at al Baghuz al Basira al Ezba and the al Omar oil field 304 M2A2 Bradley IFVs of the 4th Battalion 118th Infantry Regiment accompany a patrol in eastern Syria 13 November 2019 On 30 October 4th Battalion 118th Infantry Regiment a U S combined arms battalion equipped with M2A2 Bradley IFVs deployed to the Deir ez Zor region with Bradleys to help guard SDF U S controlled oil and gas fields The battalion is part of the U S Army National Guard s 30th ABCT which had begun arriving in Kuwait the week prior to relieve the regular Army 3rd Brigade Combat Team 4th Infantry Division in support of Operation Spartan Shield the U S s theater level contingency force for the Middle East 305 By 31 October U S forces in M ATV convoys were seen conducting dedicated patrols of oil and gas related facilities throughout Syria s al Hasakah and Deir ez Zor Governorates usually accompanied by SDF personnel The U S s deployment of heavy armored vehicles to Syria for the first time in the intervention as opposed to the lighter armored RG 33s M ATVs Strykers Armored Ground Mobility Systems citation needed and NSTVs Non Standard Tactical Vehicles U S special operations units and regular ground forces have used prior introduced additional firepower and force protection capabilities for ground forces 305 Nevertheless the Bradley IFVs were pulled out of Syria after less than two months of deployment due to unspecified reasons 306 On 3 November OIR officials confirmed that multiple artillery rounds landed about one kilometer from a road with a U S convoy OIR without offering additional details stated no personnel were injured and the patrol was not hit The Russian Defense Ministry were the first to report the incident adding that the incident was near Tell Tamer and that it was elements of Turkish backed rebels that fired the artillery 307 On 4 November Rudaw briefly interviewed a U S special operations soldier during a patrol at an oilfield near Rmelan who stated that U S forces are working with the SDF and they re letting us know the situation up here as they see it According to North Press Agency the U S patrol had begun in Rmelan and spanned the towns of al Jawadiyah al Malikiyah and Ain Diwar 308 On 15 December a large U S logistical convoy en route to Deir ez Zor was reportedly seen crossing Semalka into al Hasakah province from Iraq 309 Further information Timeline of the American led intervention in the Syrian civil war 2020 By mid January 2020 tensions between Russian and U S forces in northeast Syria had reportedly grown as U S troops had increasingly begun blocking Russian convoys from accessing certain major roads between towns Both Russia and the U S operate military outposts throughout the region as a part of their respective missions 310 On 25 August a Russian military vehicle rammed a U S armored car near al Malikiyah northeastern Syria in which four US soldiers had suffered mild concussion Russian defense minister Sergey Shoygu said that the US armed forces soldiers tried to block the Russian patrol meanwhile a US defense official said that Russian forces went to a security zone that they should not enter 311 On 30 July 2020 the Autonomous Administration of North and East Syria signed an agreement with an American oil company Delta Crescent Energy LLC to develop oil fields in the region 312 The Syrian authorities condemned the agreement and mentioned that This agreement is null and void and has no legal basis 313 Seizing oil without local government permission would be a war crime of pillage 314 On 17 August U S forces killed at least one Syrian soldier and wounded two others after a fire exchange near a checkpoint in the village of Tal Dahab near Qamishli northeastern Syria 315 On 19 September the U S deployed additional troops equipment and armored vehicles to north eastern Syria after tensions with Russia escalated in the region According to officials the moves were meant to help ensure the safety and security of coalition forces 316 U S Central Command mentioned that the United States had deployed Sentinel radars and Bradley vehicles to augment forces in the Eastern Syria Security Area ESSA 317 The reinforcements were considered a response to a 26 August incident where a Russian armored vehicle collided with a coalition M ATV injuring four U S soldiers 318 2021 present Continued Iranian U S proxy conflict Edit This section needs to be updated Please help update this article to reflect recent events or newly available information March 2023 Further information Timeline of the American led intervention in the Syrian civil war 2021 U S 1st Battalion 6th Infantry Regiment troops conduct area reconnaissance in Syria 18 February 2021 On 10 February 2021 Pentagon Press Secretary John Kirby told reporters that U S troops were not committed to protecting Syrian oil fields except for where appropriate under certain existing authorizations to protect civilians He added that DOD Department of Defense personnel or contractors are not authorized to provide assistance to any other private company including its employees or agents seeking to develop oil resources in northeastern Syria 46 However there were reports from local sources in northeastern Syria that U S forces had transported oil and wheat smuggled from Syria to Iraq 319 On 20 October 2021 troops at the al Tanf garrison were attacked by bomb laden drones in what Pentagon spokesman John Kirby called a complex coordinated and deliberate attack U S officials reportedly blamed Iran and its proxy forces for the attack but publicly declined to specify details of the attack and whether the U S was considering retaliation There were no reports of deaths or injuries Attacks by small drones carrying munitions have posed a consistent threat to U S forces in eastern Syria since at least March 2020 with U S forces suspecting ISIL or Iran backed elements of conducting the attacks as U S Iranian tensions in the region have persisted 320 Turkish involvement EditMain articles Turkish involvement in the Syrian Civil War and Turkey ISIL conflict U S and Turkish soldiers conduct joint patrols Manbij outskirts 1 November 2018 Turkey a NATO member has been involved in the Syrian Civil War since the beginning of hostilities Turkey has trained and armed some members of the Free Syrian Army and al Qaeda in Syria 321 322 and has been involved in certain spillover incidents On 2 October 2014 the Turkish Parliament authorized direct military action in both Iraq and Syria including using military force in Syria and Iraq as well as allowing coalition members to use bases in Turkey 323 Turkey has also stationed troops and tanks on its southern border near the Syrian border city of Kobani 324 The Turkish government demanded several things to go along with them intervening against ISIL including a buffer zone in Northern Syria a no fly zone over certain parts of northern Syria ground troops from other countries and the training of moderate opposition forces to fight both ISIL and al Assad 325 326 In October 2014 the Turkish Parliament authorized direct military action in both Iraq and Syria including using military force as well as allowing Combined Joint Task Force Operation Inherent Resolve members to use bases in Turkey 323 324 325 326 The same month US Vice President Joe Biden accused Turkey of funding al Nusra and al Qaeda 327 after which Turkish President Recep Erdogan demanded an apology adding that if no apology was made Biden would become history to me 328 Biden subsequently apologized 329 On 22 February 2015 the Turkish Army mounted an operation across the border to evacuate its soldiers from the Tomb of Suleyman Shah and relocate the tomb The Turkish convoy of 572 troops in 39 tanks and 57 armoured vehicles transited through Kurdish held city of Kobani en route to the tomb One Turkish soldier was killed in what government of Turkey described as an accident The success of the operation was announced 22 February by Turkish Prime Minister Ahmet Davutoglu 330 Rising anti American sentiment in Turkey has occurred since the start of the Turkish invasion of northern Syria in January 2018 aimed at ousting Syrian Kurdish forces from the enclave of Afrin A poll conducted in Turkey during the operation revealed that 90 percent of respondents believed that the United States is behind the Kurdish PKK and YPG 331 After the start of the Turkish invasion U S Secretary of Defense Jim Mattis stated that Turkey is a NATO ally It s the only NATO country with an active insurgency inside its borders And Turkey has legitimate security concerns 332 Turkish Deputy Prime Minister Bekir Bozdag urged the United States to halt its support for Kurdish YPG fighters saying Those who support the terrorist organization will become a target in this battle 333 Northern Syria Buffer Zone Edit Main article Northern Syria Buffer Zone U S and Turkish soldiers rendezvous in the Northern Syria Buffer Zone 4 October 2019 On 15 January 2019 the Turkish President Recep Tayyip Erdogan said he agreed with setting up a 35 km 22 mi safe zone in northern Syria after engaging with U S President Donald Trump a few days prior 334 On 7 August 2019 after months of negotiations Turkey and the U S reached a deal to create a 115 km 71 mi buffer zone in northern Syria along the Syria Turkey border between the Tigris and Euphrates rivers Separate from Turkey s own occupation zone in northern Syria the deal was reached partly to prevent a potential future Turkish ground incursion into Rojava against U S backed Kurdish forces Under the framework of the deal the U S and Turkey conducted joint troop patrols and Turkish reconnaissance aircraft would be allowed to monitor the zone Kurdish YPG and YPJ forces along the Turkish border dismantled their border fortifications withdrew to a security belt alongside regular SDF forces and removed all heavy weapons from the area In turn Turkey was not to conduct airstrikes or establish military observation posts in northern Syria and was not to occupy the region as administrative and civil rule was to be relegated to SDF military councils and the Kurdish Autonomous Administration of North and East Syria According to the SDF the majority of the zone was not to include any cities or towns 335 The buffer zone agreement was proven to be short lived and collapsed on 7 October after U S President Donald Trump gave his approval for a Turkish ground offensive into Rojava and ordered the withdrawal of U S troops from northern Syria The agreement was rendered fully obsolete on 9 October when Turkey launched a ground incursion into Rojava 336 In response to the offensive U S Senator Lindsey Graham warned that he would introduce bipartisan sanctions against Turkey if they invade Syria He said he would also call for their suspension from NATO if they attack Kurdish forces who assisted the U S in the destruction of the ISIS Caliphate 337 Reports of civilian casualties and war crimes Edit A coalition airstrike on ISIL positions in Kobani On 29 September 2014 several groups including the Syrian Observatory for Human Rights SOHR the Aleppo Media Center and the Local Coordination Committees reported that U S strikes hit a grain silo in the ISIL controlled town of Manbij in northern Syria killing two civilians 338 The SOHR reported ten airstrikes also targeting various parts of the province of Idlib killed at least one child and six other civilians The group said at least 19 civilians had been killed in coalition airstrikes at that time 339 The Pentagon reported it had no evidence of any civilian casualties from airstrikes targeting militants in Syria 340 The United States has also acknowledged that its rules to avoid civilian casualties are looser in Syria than those for drone strikes elsewhere 341 The SOHR and other activist groups reported that seven civilians were killed when an air strike hit a gas distribution facility near the town of al Khasham is the eastern Deir al Zor province on 17 October 2014 and three civilians were killed in an air strike on 16 October 2014 in the north east province of al Hassakah According to their reports most of the civilians killed were fuel tanker drivers 342 According to Reuters 50 civilians were killed in Syria by US led airstrikes from the start of the campaign in late September 2014 to mid November 343 On 28 December 2014 a U S airstrike in the northern Syrian town of Al Bab killed more than 50 civilians 344 On 21 May 2015 the United States admitted it probably killed two children in bombings near Harem on 4 and 5 November 2014 These are the first such admissions of the campaign and followed a military investigation A similar investigation regarding an event in Syria is underway and two regarding events in Iraq 345 Two adult civilians were also minorly injured in the Harem strikes The deaths and injuries are attributed by the military investigation to unintentional secondary explosions after the bombers hit their intended targets linked to the Khorasan 346 On 19 July 2016 a coalition led airstrike on the ISIL controlled villages of Tokhar and Hoshariyeh reportedly killed at least 56 civilians including 11 children 347 On 3 August 2016 dozens of civilians were killed after an airstrike in al Qa im some sources claiming that 30 were killed 348 Airwars which maintains an extensive database of all known allegations in which civilians and friendly forces have been reported killed by the Coalition since August 2014 reports between 503 and 700 civilians were killed by Coalition airstrikes in Syria as of April 2016 349 At least 33 people were killed in a U S led coalition airstrike on a school near Raqqa in March 2017 350 On 16 March 2017 a U S airstrike in rebel held Aleppo killed at least 46 people and wounded more than 100 after warplanes hit a mosque 351 A destroyed neighborhood in Raqqa in August 2017 According to a report by Amnesty International the U S led Coalition has provided falsified data to conceal the actual number of civilian deaths resulting from their bombing campaigns and is deeply in denial about civilian casualties in Raqqa After an investigation by Amnesty International in June 2018 the U S led Coalition confirmed that coalition air strikes killed 70 civilians mostly women and children including 39 members of a single family 352 According to Airwars 353 the strikes of U S led coalition killed as many as 6 000 civilians in Syria and Iraq in 2017 354 On 2 May 2018 Britain s Ministry of Defense admitted for the first time that a civilian was unintentionally killed in an anti ISIL drone strike on 26 March 2018 According to the MoD the civilian was on a motorbike and entered the target area at the last minute Defense Secretary Gavin Williamson said the incident was deeply regrettable 355 356 On 18 March 2019 during the Battle of Baghuz Fawqani a U S special operations led airstrike killed up to 80 people including 64 civilians almost exclusively women and children and 18 ISIL militants according to The New York Times The site of the strike was bulldozed and the incident was covered up by the U S military until a New York Times report exposed the cover up in November 2021 357 A US military investigation in May 2022 concluded that the airstrike killed 52 ISIL fighters and 4 civilians and did not violate the laws of war 358 On 25 April 2019 a joint investigation by Amnesty International and Airwars of over 200 strike sites reported that anti ISIL Coalition bombing during the 2017 Battle of Raqqa had killed 1 600 civilians alone CJTF OIR reported the month prior that its 4 year operations over both Iraq and Syria amounted to 1 257 civilian casualties overall Coalition forces razed Raqqa Amnesty International and Airwars call upon the Coalition forces to end their denial about the shocking scale of civilian deaths and destruction caused by their offensive in Raqqa the investigators said in a joint statement The Coalition responded that they continue to employ thorough and deliberate targeting and strike processes to minimize the impact of our operations on civilian populations and infrastructure 359 By August 2022 Airwars estimated 8 192 13 247 civilian deaths in Iraq and Syria due to Coalition airstrikes including 1 724 2 366 children 1 119 1 459 women and 3 717 named victims The Coalition s own estimate of civilian deaths was 1 417 Coalition airstrikes also wounded between 5 875 9 098 civilians 360 Results Edit An ISIL command and control center before and after an F 22 airstrike on 23 September 2014 The U S led air campaign inflicted heavy losses on the Islamic State and alongside special forces operations artillery strikes and material and intelligence support to the SDF catalyzed the loss of the bulk of ISIL s Syrian territory By late 2015 coalition planes were dropping or launching an average of 67 bombs or missiles a day 361 According to CJTF OIR by May 2016 ISIL had lost 25 percent of the territory it possessed in Syria since the campaign began mostly due to advances by YPG SDF forces with heavy Coalition air support 362 By the end of 2016 the U S led air campaign against ISIL in both Iraq and Syria was estimated by the Pentagon to have struck 32 000 targets including 164 tanks 400 Humvees and 2 638 pieces of oil infrastructure and killed 50 000 militants with approximately 1 3 of the losses taking place in Syria 39 363 By August 2017 CJTF OIR had flown 168 000 sorties in both Syria and Iraq mostly against ISIL 39 By December 2017 the Pentagon increased the estimate to 80 000 ISIL fighters killed by coalition airstrikes between Iraq and Syria 364 By the end of 2018 the SDF assisted by the coalition had liberated over 20 000 square kilometers of territory and three million Syrian civilians from the Islamic State 365 By 23 March 2019 the day of ISIL s territorial collapse in Syria CJTF OIR and partner forces had liberated nearly 110 000 square kilometers 42 471 square miles from the Islamic State as a result 7 7 million people no longer lived under ISIL s caliphate 366 The United Nations estimated in August 2020 that over 10 000 ISIL insurgents remained in Syria and Iraq 367 Reactions EditDomestic U S approval Edit The intervention was initially conducted with strong domestic U S support according to Gallup polling in 2014 61 of Americans supported intervention against ISIL in both Iraq and Syria while 30 were opposed and 9 undecided 368 A larger CCGA poll taken in 2016 showed that 72 of Americans supported conducting airstrikes against violent Islamic extremist groups in Syria while 58 also supported sending special operations forces into Syria to fight violent Islamic extremist groups Additionally a slim majority 52 supported enforcing a no fly zone over parts of Syria including bombing Syrian air defenses However only 26 supported sending arms and other supplies to anti government rebel groups in Syria 369 A CNN poll conducted between 17 and 20 October 2019 showed that 75 of Americans were generally concerned about the situation in Syria with 43 saying they were very concerned 51 thought the U S had a responsibility to remain involved in the Syrian conflict seven months after ISIL s final Syrian settlement had fallen while 43 did not 370 Syrian reactions Edit Syria In 2014 a week before the first airstrikes Ali Haidar the Syrian Minister of National Reconciliation said that any action of any kind without the consent of the Syrian government would be an attack on Syria 225 However despite Haidar s original statement after the coalition campaign began the Syrian government struck a more conciliatory tone with Foreign Minister Walid al Moallem suggesting the airstrikes were an indication that Syria and the anti ISIL coalition were on the same side 371 Among the general Syrian population a July 2015 poll by ORB International surveying 1 365 adults in all of Syria s 14 governorates found that 47 supported U S led airstrikes on ISIL while 50 opposed them 372 Opposition to American airstrikes was strongest in ISIL held territory where 92 were opposed support was strongest in YPG held territory and government held territory where 87 and 55 respectively supported American strikes on ISIL 373 Syrian opposition Hadi Bahra the leader of the National Coalition for Syrian Revolutionary and Opposition Forces called for airstrikes against ISIL before the intervention began The coalition is recognized by 20 countries the European Union and the Arab league as the legitimate representative of Syria in opposition to the Assad government Bahra said strikes were needed to weaken ISIL a faction in the inter rebel conflict during the Syrian Civil War so that the Free Syrian Army and other moderate opposition forces could oppose Assad more effectively 374 Despite Bahra s support many Syrian rebel groups have criticized U S airstrikes for targeting only ISIL who are enemies of the Assad government while not also targeting Assad government forces the results of which could help government forces gain more ground 341 Meanwhile jihadist groups within the opposition have portrayed the coalition as an anti Sunni stooge of the Syrian regime 375 while many Sunnis in Syria are angered that only extremist Sunnis are being targeted while mostly Shiite Assad forces are not targeted 376 Some rebels defected to extremist groups as a result of the U S decision to strike jihadist groups other than ISIL such as the al Nusra Front 377 International reactions Edit In a Pew poll taken in 2015 a median of 62 of people across the nations polled said they support American military efforts against the Islamic State group in Iraq and Syria while a median of 24 were opposed Among those in support were 78 of Lebanese 77 of Jordanians 48 of Turks 53 of Palestinians and 84 of Israelis as well as 81 of French 66 of British and 62 of Germans 378 Australia Tony Abbott the Prime Minister of Australia praised the intervention saying that an international effort was needed in order to combat the ISIL threat 228 Despite Abbott s support for the intervention the Australian Government said it is not likely to contribute forces to operations in Syria 379 Canada Stephen Harper the Prime Minister of Canada said in October 2014 Canada would strike ISIL targets in Syria if the Assad government gave approval 380 New Prime Minister Justin Trudeau called President Obama almost immediately after coming into office to inform him that Canada will be ceasing air operations in coordination with Americans Trudeau did not give a time frame 381 Czech Republic Lubomir Zaoralek the Minister of Foreign Affairs of the Czech Republic supported the intervention against the Islamic State and said that it is important to keep supporting the ground forces in the battle against ISIS and the Czech Republic will keep providing military support to the Iraqi army and to the Kurdish Peshmerga He also noted that air strikes would not defeat Islamic State The Czech government said that ISIS is enemy not only for safety in the Middle East but also for security and stability in the Czech Republic and Europe 382 Ecuador The Ecuadorian government opposed the airstrikes in Syria without the consent of the Syrian government 383 Egypt Egyptian President Abdel Fattah el Sisi expressed his government s support for the international campaign against ISIL and a spokesperson for the Egyptian foreign ministry echoed his statements by reiterating the Egyptian government s willingness to back the war against ISIL 384 385 Germany German foreign minister Frank Walter Steinmeier questioned whether President Obama s plan was adequate in order to combat ISIL and said Germany had not been asked to participate in airstrikes nor would it participate if asked 386 Iran Iranian President Hassan Rouhani condemned ISIL s actions but also called the airstrikes in Syria illegal because they were conducted without the consent of the Syrian government 387 Iran s deputy foreign minister Hossein Amir Abdollahian was reported in Iranian media as saying that Iran had warned the United States that Israel would be at risk should the US and its allies seek to topple Syrian president Bashar al Assad while fighting ISIL in Syria 388 Israel Israeli Prime Minister Benjamin Netanyahu said Israel fully supported the U S government s calls for united action against ISIL 386 Japan A spokesperson for the Japanese Ministry of Foreign Affairs said the Japanese government would continue to closely coordinate with the United States and other countries along with offering support and cooperation in their strikes against ISIL 389 Netherlands Mark Rutte the Prime Minister of the Netherlands showed understanding for the intervention against ISIL in Syria and said that his government was exploring options to contribute in the fight against ISIL 390 Russia Alexander Lukashevich Russian Foreign Ministry spokesman opposed the military intervention without the consent of the legitimate government and said that this step in the absence of a UN Security Council decision would be an act of aggression a gross violation of international law 225 On 14 October Russian Foreign Minister Sergey Lavrov questioned the motives of the intervention saying Maybe their stated goal is not entirely sincere Maybe it is regime change He also questioned the effectiveness of the year long campaign With as far as I know 25 000 sorties they US led air campaign could have smashed the entire country of Syria into smithereens continuing to remark that positive results on the ground are not visible He also criticized the continued supply of arms to rebels saying I want to be honest we barely have any doubt that at least a considerable part of these weapons will fall into the terrorists hands He continued to call for the countries involved to join a coalition made up of Russian Syrian Iranian Iraqi Jordanian and Hezbollah forces against what Russia claims is solely ISIL and al Qaeda but the US has asserted is primarily non jihadist opposition forces 391 Dmitry Peskov spokesman for the Russian President Vladimir Putin described the US air strikes on the Shayrat airbase as an act of aggression against a sovereign state delivered in violation of international law under a far fetched pretext a serious blow to Russian US relations which are already in a poor state 392 Foreign Minister Sergei Lavrov referred to the Sharyat attack as an act of aggression under a completely invented pretext He compared events in April 2017 to the situation of 2003 when the USA the UK and several of their allies invaded Iraq without the UN Security Council s approval a grave violation of international law but at that point they at least tried to show some material evidence 392 Turkey The Davutoglu Government called on the Grand National Assembly of Turkey to approve measures that would grant extensive authority to the President to launch military operations in both Syria and Iraq including the authority to send troops across the border although it is unclear whether the Turkish leadership intends to act on that authority President Recep Tayyip Erdogan has urged the establishment of a no fly zone by coalition forces in northern Syria 393 United Kingdom A spokesperson for British Prime Minister David Cameron said the UK would not rule out airstrikes in Syria against ISIL 386 On 26 September 2014 Parliament voted 524 to 43 to approve action inside Iraq 394 While visiting Iraqi Kurdistan in mid October British Foreign Secretary Philip Hammond said he saw no immediate demand from U S and Arab militaries for Britain to extend its airstrikes to Syria 395 British Defense Minister Michael Fallon said on 21 October that British Reaper drones and Rivet Joint surveillance aircraft would be starting intelligence gathering missions in Syria very shortly 83 United States In November 2019 President Donald Trump ordered U S troops to secure the oil fields in eastern Syria then said any remaining U S troops in Syria were there only for the oil and that the U S was keeping the oil 314 396 United Nations Ban Ki moon UN secretary general welcomed the airstrikes against militants in Syria but noted that the involved parties must abide by international humanitarian law and take all precautions to avoid and minimize civilian casualties 397 Venezuela At the 69th General Assembly of the United Nations President Nicolas Maduro said It s President Bashar al Assad and the Syrian government which have stopped the terrorists and continued by saying Instead of bombing and bombing we must make an alliance for peace 398 399 See also EditForeign interventions by the United States Military intervention against the Islamic State of Iraq and the Levant American led intervention in Iraq 2014 2021 Siege of Kobani Military of ISIL Foreign involvement in the Syrian Civil War Opposition ISIL conflict during the Syrian Civil War Iraqi insurgency 2011 2013 2015 Egyptian military intervention in Libya List of wars and battles involving ISIL Syria United States relations Russian military intervention in the Syrian Civil War Timeline of the Syrian Civil War August 2014 present List of United States attacks on the Syrian government during the Syrian Civil War List of United States special forces raids during the Syrian Civil War James Franklin JeffreyReferences Edit UK forces kill British Isis fighters in targeted drone strike on Syrian city The Guardian 7 September 2015 Retrieved 10 September 2015 Syria air strikes conducted by UK military pilots BBC News 17 July 2015 Retrieved 24 July 2015 SAS troops dressed in US uniforms and joined special forces on Isis Abu Sayyaf overnight raid in Syria MSN 10 August 2015 Retrieved 10 August 2015 Surveillance missions over Syria confirmed Ministry of Defence 21 October 2014 Retrieved 21 October 2014 IS conflict France launches air strikes in Syria BBC 27 September 2015 Retrieved 27 September 2015 a b Saudi Arabia UAE send troops to support Kurds in Syria Middle East Monitor 22 November 2018 The UAE has it in for 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