fbpx
Wikipedia

Imperial Japanese Army

The Imperial Japanese Army[a] was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emperor of Japan as supreme commander of the army and the Imperial Japanese Navy. Later an Inspectorate General of Aviation became the third agency with oversight of the army. During wartime or national emergencies, the nominal command functions of the emperor would be centralized in an Imperial General Headquarters (IGHQ), an ad hoc body consisting of the chief and vice chief of the Army General Staff, the Minister of the Army, the chief and vice chief of the Naval General Staff, the Inspector General of Aviation, and the Inspector General of Military Training.

Imperial Japanese Army
大日本帝國陸軍
Dai-Nippon Teikoku Rikugun
The ensign of the Imperial Japanese Army
Active1868–1945
Country Empire of Japan
TypeArmy
RoleMilitary ground force
Size6,095,000 in August 1945
Part ofImperial Armed Forces
Colors  Red   White
EquipmentArmy equipment
Engagements
Commanders
Emperor of Japan
Minister of the Army
Chief of the General Staff
Insignia
Infantry Regimental Colour

History

Origins (1868–1871)

In the mid-19th century, Japan had no unified national army and the country was made up of feudal domains (han) with the Tokugawa shogunate (bakufu) in overall control, which had ruled Japan since 1603. The bakufu army, although a large force, was only one among others, and bakufu efforts to control the nation depended upon the cooperation of its vassals' armies.[1] The opening of the country after two centuries of seclusion subsequently led to the Meiji Restoration and the Boshin War in 1868. The domains of Satsuma and Chōshū came to dominate the coalition against the shogunate.

Boshin War

 
Ukiyo-E, depicting the retreat of shogunate forces in front of the Imperial Army (Kangun). Yodo Castle is shown in the background.

On 27 January 1868, tensions between the shogunate and imperial sides came to a head when Tokugawa Yoshinobu marched on Kyoto, accompanied by a 15,000-strong force, some of which had been trained by French military advisers. They were opposed by 5,000 troops from the Satsuma, Chōshū, and Tosa domains. At the two road junctions of Toba and Fushimi just south of Kyoto, the two forces clashed. On the second day, an Imperial banner was given to the defending troops and a member of the Imperial Family, the Prince Ninnaji, was named nominal commander in chief, in effect making the pro-imperial forces officially an Imperial army.[b][2] The bakufu forces eventually retreated to Osaka, with the remaining forces ordered to retreat to Edo. Yoshinobu and his closest advisors left for Edo by ship.[3] The encounter at Toba–Fushimi between the imperial and shogunate forces marked the beginning of the conflict. With the court in Kyoto firmly behind the Satsuma-Chōshū-Tosa coalition, other domains that were sympathetic to the cause – such as Tottori (Inaba), Aki (Hiroshima), and Hizen (Saga) – emerged to take a more active role in military operations.[4] Western domains that had either supported the shogunate or remained neutral also quickly announced their support of the restoration movement.[4]

The nascent Meiji state required a new military command for its operations against the shogunate. In 1868, the "Imperial Army" being just a loose amalgam of domain armies, the government created four military divisions: the Tōkaidō, Tōsandō, San'indō, and Hokurikudō, each of which was named for a major highway.[5] Overseeing these four armies was a new high command, the Eastern Expeditionary High Command (Tōsei daisō tokufu), whose nominal head was prince Arisugawa-no-miya, with two court nobles as senior staff officers.[5] This connected the loose assembly of domain forces with the imperial court, which was the only national institution in a still unformed nation-state.[5] The army continually emphasized its link with the imperial court: firstly, to legitimize its cause; secondly, to brand enemies of the imperial government as enemies of the court and traitors; and, lastly, to gain popular support.[6] To supply food, weapons, and other supplies for the campaign, the imperial government established logistical relay stations along three major highways. These small depots held stockpiled material supplied by local pro-government domains, or confiscated from the bakufu and others opposing the imperial government. Local villagers were routinely impressed as porters to move and deliver supplies between the depots and frontline units.[6]

Struggles to form a centralized army

Initially, the new army fought under makeshift arrangements, with unclear channels of command and control and no reliable recruiting base.[6] Although fighting for the imperial cause, many of the units were loyal to their domains rather than the imperial court. In March 1869, the imperial government created various administrative offices, including a military branch; and in the following month organized an imperial bodyguard of 400 to 500, which consisted of Satsuma and Chōshū troops strengthened by veterans of the encounter at Toba–Fushimi, as well as yeoman and masterless samurai from various domains.[6] The imperial court told the domains to restrict the size of their local armies and to contribute to funding a national officers' training school in Kyoto.[6] However, within a few months the government disbanded both the military branch and the imperial bodyguard: the former was ineffective while the latter lacked modern weaponry and equipment. To replace them, two new organizations were created. One was the military affairs directorate which was composed of two bureaus, one for the army and one for the navy. The directorate drafted an army from troop contributions from each domain proportional to each domain's annual rice production (koku). This conscript army (chōheigun) integrated samurai and commoners from various domains into its ranks.[6] As the war continued, the military affairs directorate expected to raise troops from the wealthier domains and, in June, the organization of the army was fixed, where each domain was required to send ten men for each 10,000 koku of rice produced. However, this policy put the imperial government in direct competition with the domains for military recruitment, which was not rectified until April 1868, when the government banned the domains from enlisting troops. Consequently, the quota system never fully worked as intended and was abolished the following year.[6]

The Imperial forces encountered numerous difficulties during the war, especially during the campaign in Eastern Japan. Headquarters in faraway Kyoto often proposed plans at odds with the local conditions, which led to tensions with officers in the field, who in many cases ignored centralized direction in favor of unilateral action.[7] The army lacked a strong central staff that was capable of enforcing orders. Consequently, military units were at the mercy of individual commanders' leadership and direction. This was not helped by the absence of a unified tactical doctrine, which left units to fight according to the tactics favored by their respective commanders. There was increased resentment by many lower ranked commanders as senior army positions were monopolized by the nobility together with samurai from Chōshū and Satsuma.[7] The use of commoners within the new army created resentment among the samurai class. Although the nascent Meiji government achieved military success, the war left a residue of disgruntled warriors and marginalized commoners, together with a torn social fabric.[8]

 
The Koishikawa Arsenal in Tokyo, inaugurated in 1871, soon after the Meiji restoration.

Foundation of a national army (1871–1873)

 
Prince Aritomo Yamagata, a field marshal in the Imperial Japanese Army and twice Prime Minister of Japan. He was one of the main architects of the military foundations of early modern Japan. Yamagata Aritomo can be seen as the father of Japanese militarism.

After the defeat of the Tokugawa shogunate and operations in Northeastern Honshu and Hokkaido a true national army did not exist. Many in the restoration coalition had recognized the need for a strong centralized authority and although the imperial side was victorious, the early Meiji government was weak and the leaders had to maintain their standing with their domains whose military forces was essential for whatever the government needed to achieve.[9] The leaders of the restoration were divided over the future organization of the army. Ōmura Masujirō who had sought a strong central government at the expense of the domains advocated for the creation of a standing national army along European lines under the control of the government, the introduction of conscription for commoners and the abolition of the samurai class.[8] Ōkubo Toshimichi preferred a small volunteer force consisting of former samurai.[8][10] Ōmura's views for modernizing Japan's military led to his assassination in 1869 and his ideas were largely implemented after his death by Yamagata Aritomo. Aritomo has been described as the father of the Imperial Japanese Army.[11] Yamagata had commanded mixed commoner-samurai Chōshū units during the Boshin War and was convinced of the merit of peasant soldiers.[12] Although he himself was part of the samurai class, albeit of insignificant lower status, Yamagata distrusted the warrior class, several members of whom he regarded as clear dangers to the Meiji state.[13]

Establishment of the Imperial Guard and institutional reforms

 
Barrack of the Imperial Guard, circa 1940

In March 1871, the War Ministry announced the creation of an Imperial Guard (Goshinpei) of six thousand men,[14] consisting of nine infantry battalions, two artillery batteries and two cavalry squadrons.[15] The emperor donated 100,000 ryō to underwrite the new unit, which was subordinate to the court.[16] It was composed of members of the Satsuma, Chōshū and Tosa domains, who had led the restoration. Satsuma provided four battalions of infantry and four artillery batteries; Chōshū provided three battalions of infantry; Tosa two battalions of infantry, two squadrons of cavalry, and two artillery batteries.[14] For the first time, the Meiji government was able to organize a large body of soldiers under a consistent rank and pay scheme with uniforms, which were loyal to the government rather than the domains.[14] The Imperial Guard's principal mission was to protect the throne by suppressing domestic samurai revolts, peasant uprisings and anti-government demonstrations.[17] The possession of this military force was a factor in the government's abolition of the han system.

The military ministry (Hyōbushō) was reorganized in July 1871; on August 29, simultaneously with the decree abolishing the domains, the Dajōkan ordered local daimyos to disband their private armies and turn their weapons over to the government.[17] Although the government played on the foreign threat, especially Russia's southward expansion, to justify a national army, the immediately perceived danger was domestic insurrection.[17] Consequently, on August 31, the country was divided into four military districts, each with its own chindai (garrison) to deal with peasant uprisings or samurai insurrections. The Imperial Guard formed the Tokyo garrison, whereas troops from the former domains filled the ranks of the Osaka, Kumamoto, and Sendai garrisons. The four garrisons had a total of about 8,000 troops – mostly infantry, but also a few hundred artillerymen and engineers.[17] Smaller detachments of troops also guarded outposts at Kagoshima, Fushimi, Nagoya, Hiroshima, and elsewhere. By late December 1871, the army set modernization and coastal defense as priorities; long-term plans were devised for an armed force to maintain internal security, defend strategic coastal areas, train and educate military and naval officers, and build arsenals and supply depots.[17] Despite previous rhetoric about the foreign menace, little substantive planning was directed against Russia. In February 1872, the military ministry was abolished and separate army and navy ministries were established.[17]

Conscription

 
Marquis Nozu Michitsura, a field marshal in the early Imperial Japanese Army. He was appointed as chief of staff of the Imperial Guard (Japan) in 1874.

The conscription ordinance enacted on January 10, 1873, made universal military service compulsory for all male subjects in the country. The law called for a total of seven years of military service: three years in the regular army (jōbigun), two years in the reserve (dai'ichi kōbigun), and an additional two years in the second reserve (daini kōbigun).[18] All able-bodied males between the ages of 17 and 40 were considered members of the national guard (kokumingun), which would only see service in a severe national crisis, such as an attack or invasion of Japan. The conscription examination decided which group of recruits would enter the army, those who failed the exam were excused from all examinations except for the national guard. Recruits who passed entered the draft lottery, where some were selected for active duty. A smaller group would be selected for replacement duty (hojū-eki) should anything happen to any of the active duty soldiers; the rest were dismissed.[18] One of the primary differences between the samurai and the peasant class was the right to bear arms; this ancient privilege was suddenly extended to every male in the nation.[19] There were several exemptions, including criminals, those who could show hardship, the physically unfit, heads of households or heirs, students, government bureaucrats, and teachers.[13] A conscript could also purchase an exemption for ¥270, which was an enormous sum for the time and which restricted this privilege to the wealthy.[13] Under the new 1873 ordinance, the conscript army was composed mainly of second and third sons of impoverished farmers who manned the regional garrisons, while former samurai controlled the Imperial Guard and the Tokyo garrison.[13]

 
Marquis Jutoku Saigo, a general in the early Imperial Japanese Army. He is the nephew of Saigō Takamori, the leader of Satsuma Rebellion of 1877. Many of the rebels were incorporated into the Imperial Army after the failure of the armed uprising.

Initially, because of the army's small size and numerous exemptions, relatively few young men were actually conscripted for a three-year term on active duty.[13] In 1873, the army numbered approximately 17,900 from a population of 35 million at the time; it doubled to about 33,000 in 1875.[13] The conscription program slowly built up the numbers. Public unrest began in 1874, reaching the apex in the Satsuma Rebellion of 1877, which used the slogans, "oppose conscription", "oppose elementary schools", and "fight Korea". It took a year for the new army to crush the uprising, but the victories proved critical in creating and stabilizing the Imperial government and to realize sweeping social, economic and political reforms that enabled Japan to become a modern state that could stand comparison to France, Germany, and other European powers.

Further development and modernization (1873–1894)

Foreign assistance

The early Imperial Japanese Army was developed with the assistance of advisors from France,[20] through the second French military mission to Japan (1872–80), and the third French military mission to Japan (1884–89). However, after France's defeat in 1871 the Japanese government switched to the victorious Germans as a model. From 1886 to April 1890, it hired German military advisors (Major Jakob Meckel, replaced in 1888 by von Wildenbrück and Captain von Blankenbourg) to assist in the training of the Japanese General Staff. In 1878, the Imperial Japanese Army General Staff Office, based on the German General Staff, was established directly under the Emperor and was given broad powers for military planning and strategy.

Other known foreign military consultants were Major Pompeo Grillo from the Kingdom of Italy, who worked at the Osaka foundry from 1884 to 1888, followed by Major Quaratezi from 1889 to 1890; and Captain Schermbeck from the Netherlands, who worked on improving coastal defenses from 1883 to 1886. Japan did not use foreign military advisors between 1890 and 1918, until the French military mission to Japan (1918–19), headed by Commandant Jacques-Paul Faure, was requested to assist in the development of the Japanese air services.[21]

Taiwan Expedition

 
Commander-in-chief Saigō Tsugumichi (sitting at the center) pictured with leaders of the Seqalu tribe.

The Japanese invasion of Taiwan under Qing rule in 1874 was a punitive expedition by Japanese military forces in response to the Mudan Incident of December 1871. The Paiwan people, who are indigenous peoples of Taiwan, murdered 54 crewmembers of a wrecked merchant vessel from the Ryukyu Kingdom on the southwestern tip of Taiwan. 12 men were rescued by the local Chinese-speaking community and were transferred to Miyako-jima in the Ryukyu Islands. The Empire of Japan used this as an excuse to both assert sovereignty over the Ryukyu Kingdom, which was a tributary state of both Japan and Qing China at the time, and to attempt the same with Taiwan, a Qing territory. It marked the first overseas deployment of the Imperial Japanese Army and Navy.[22]

An Imperial Rescript to Soldiers and Sailors of 1882 called for unquestioning loyalty to the Emperor by the new armed forces and asserted that commands from superior officers were equivalent to commands from the Emperor himself. Thenceforth, the military existed in an intimate and privileged relationship with the imperial institution.

Top-ranking military leaders were given direct access to the Emperor and the authority to transmit his pronouncements directly to the troops. The sympathetic relationship between conscripts and officers, particularly junior officers who were drawn mostly from the peasantry, tended to draw the military closer to the people. In time, most people came to look more for guidance in national matters more to military than to political leaders.

 
Count Nogi Maresuke, a general in the Imperial Japanese Army and the third governor of Taiwan

By the 1890s, the Imperial Japanese Army had grown to become the most modern army in Asia: well-trained, well-equipped, and with good morale. However, it was basically an infantry force deficient in cavalry and artillery when compared with its European contemporaries. Artillery pieces, which were purchased from America and a variety of European nations, presented two problems: they were scarce, and the relatively small number that were available were of several different calibers, causing problems with ammunition supply.[citation needed]

First Sino-Japanese War

 
Type 13(Top) & Type 22(bottom) Murata rifle. Murata rifle was the first indigenously produced Japanese service rifle adopted in 1880.
 
Japanese troops during the Sino-Japanese War

In the early months of 1894, the Donghak Rebellion broke out in southern Korea and had soon spread throughout the rest of the country, threatening the Korea capital Seoul, itself. The Chinese, since the beginning of May had taken steps to prepare the mobilization of their forces in the provinces of Zhili, Shandong and in Manchuria, as a result of the tense situation on the Korean peninsula.[23] These actions were planned more as an armed demonstration intended to strengthen the Chinese position in Korea, rather than as a preparation for war with Japan.[23] On June 3, the Chinese government accepted the requests from the Korean government to send troops to help quell the rebellion, additionally they also informed the Japanese of the action. It was decided to send 2,500 men to Asan, about 70 km from the capital Seoul. The troops arrived in Asan on June 9 and were additionally reinforced by 400 more on June 25, a total of about 2,900 Chinese soldiers were at Asan.[23]

From the very outset the developments in Korea had been carefully observed in Tokyo. Japanese government had soon become convinced that the Donghak Rebellion would lead to Chinese intervention in Korea. As a result, soon after learning word about the Korean government's request for Chinese military help, immediately ordered all warships in the vicinity to be sent to Pusan and Chemulpo.[23] On June 9, a formation of 420 rikusentai, selected from the crews of the Japanese warships was immediately dispatched to Seoul, where they served temporarily as a counterbalance to the Chinese troops camped at Asan.[24] Simultaneously, the Japanese decided to send a reinforced brigade of approximately 8,000 troops to Korea.[25] The reinforced brigade, included auxiliary units, under the command of General Oshima Yoshimasa was fully transported to Korea by June 27.[25] The Japanese stated to the Chinese that they were willing to withdraw the brigade under General Oshima if the Chinese left Asan prior.[25] However, when on 16 July, 8,000 Chinese troops landed near the entrance of the Taedong River to reinforce Chinese troops garrisoned in Pyongyang, the Japanese delivered Li Hongzhang an ultimatum, threatening to take action if any further troops were sent to Korea. Consequently, General Oshima in Seoul and commanders of the Japanese warships in Korean waters received orders allowing them to initiate military operations if any more Chinese troops were sent to Korea.[25] Despite this ultimatum, Li, considered that Japanese were bluffing and were trying to probe the Chinese readiness to make concessions.[25] He decided, therefore to reinforce Chinese forces in Asan with a further 2,500 troops, 1,300 of which arrived in Asan during the night of July 23–24. At the same time, in the early morning of July 23, the Japanese had taken control of the Royal Palace in Seoul and imprisoned the King Gojong, forcing him to renounce ties with China.[26]

 
Count Akiyama Yoshifuru, served as a cavalry regimental commander in the First Sino-Japanese War of 1894–1895. In the Russo-Japanese War of 1904–1905, he led his troops against the Cossack cavalry divisions of the Imperial Russian Army.

During the almost two-month interval prior to the declaration of war, the two service staffs developed a two-stage operational plan against China. The army's 5th Division would land at Chemulpo to prevent a Chinese advance in Korea while the navy would engage the Beiyang fleet in a decisive battle in order to secure control of the seas.[27] If the navy defeated the Chinese fleet decisively and secured command of the seas, the larger part of the army would undertake immediate landings on the coast between Shanhaiguan and Tientsin, and advance to the Zhili plain in order to defeat the main Chinese forces and bring the war to a swift conclusion.[27] If neither side gained control of the sea and supremacy, the army would concentrate on the occupation of Korea and exclude Chinese influence there.[27] Lastly, if the navy was defeated and consequently lost command of the sea, Japanese forces in Korea would be ordered to hang on and fight a rearguard action while the bulk of the army would remain in Japan in preparation to repel a Chinese invasion. This worst-case scenario also foresaw attempts to rescue the beleaguered 5th Division in Korea while simultaneously strengthening homeland defenses. The army's contingency plans which were both offensive and defensive, depended on the outcome of the naval operations.[28]

 
Prince Katsura Tarō, three times Prime Minister of Japan. Katsura was the Vice-Minister of War during the period. He commanded the IJA 3rd Division under his mentor, Field Marshal Yamagata Aritomo, during the First Sino-Japanese War.

Clashes between Chinese and Japanese forces at Pungdo and Seongwhan caused irreversible changes to Sino-Japanese relations and meant that a state of war now existed between the two countries.[29] The two governments officially declared war on August 1. Initially, the general staff's objective was to secure the Korean peninsula before the arrival of winter and then land forces near Shanhaiguan.[30] However, as the navy was unable to bring the Beiyang fleet into battle in mid-August, temporarily withdrew from the Yellow Sea to refit and replenish its ships.[31] As a consequence, in late August the general staff ordered an advance overland to the Zhili plain via Korea in order to capture bases on the Liaodong Peninsula to prevent Chinese forces from interfering with the drive on Beijing.[31] The First Army with two divisions was activated on September 1. In mid-September 17, the Chinese forces defeated at Pyongyang and occupied the city, as the remaining Chinese troops retreated northward. The navy's stunning victory in the Yalu on September 17, was crucial to the Japanese as it allowed the Second Army with three divisions and one brigade to land unopposed on the Liaodong Peninsula about 100 miles north of Port Arthur which controlled the entry to the Bohai Gulf, in mid-October.[31] While, the First Army pursued the remaining Chinese forces from Korea across the Yalu River, Second Army occupied the city of Dairen on November 8 and then seized the fortress and harbor at Port Arthur on November 25. Farther north, the First army's offensive stalled and was beset by supply problems and winter weather.[31]

 
Type 30 rifle was the standard infantry rifle of the Imperial Japanese Army from 1897 to 1905.

Boxer Rebellion

In 1899–1900, Boxer attacks against foreigners in China intensified, resulting in the siege of the diplomatic legations in Beijing. An international force consisting of British, French, Russian, German, Italian, Austro-Hungarian, American, and Japanese troops was eventually assembled to relieve the legations. The Japanese provided the largest contingent of troops, 20,840, as well as 18 warships.

A small, hastily assembled, vanguard force of about 2,000 troops, under the command of British Admiral Edward Seymour, departed by rail, from Tianjin, for the legations in early June.[32] On June 12, mixed Boxer and Chinese regular army forces halted the advance, some 30 miles from the capital. The road-bound and badly outnumbered allies withdrew to the vicinity of Tianjin, having suffered more than 300 casualties.[32] The army general staff in Tokyo became aware of the worsening conditions in China and had drafted ambitious contingency plans,[33] but the government, in light of the Triple Intervention refused to deploy large forces unless requested by the western powers.[33] However, three days later, the general staff did dispatch a provisional force of 1,300 troops, commanded by Major General Fukushima Yasumasa, to northern China. Fukushima was chosen because his ability to speak fluent English which enabled him to communicate with the British commander. The force landed near Tianjin on July 5.[33]

On June 17, with tensions increasing, naval Rikusentai from Japanese ships had joined British, Russian, and German sailors to seize the Dagu forts near Tianjin.[33] Four days later, the Qing court declared war on the foreign powers. The British, in light of the precarious situation, were compelled to ask Japan for additional reinforcements, as the Japanese had the only readily available forces in the region.[33] Britain at the time was heavily engaged in the Boer War, and, consequently, a large part of the British army was tied down in South Africa. Deploying large numbers of troops from British garrisons in India would take too much time and weaken internal security there.[33] Overriding personal doubts, Foreign Minister Aoki Shūzō calculated that the advantages of participating in an allied coalition were too attractive to ignore. Prime Minister Yamagata likewise concurred, but others in the cabinet demanded that there be guarantees from the British in return for the risks and costs of a major deployment of Japanese troops.[33] On July 6, the 5th Infantry Division was alerted for possible deployment to China, but without a timetable being set. Two days later, on July 8, with more ground troops urgently needed to lift the siege of the foreign legations at Peking, the British ambassador offered the Japanese government one million British pounds in exchange for Japanese participation.[33]

Shortly afterward, advance units of the 5th Division departed for China, bringing Japanese strength to 3,800 personnel, of the then-17,000 allied force.[33] The commander of the 5th Division, Lt. General Yamaguchi Motoomi, had taken operational control from Fukushima. A second, stronger allied expeditionary army stormed Tianjin, on July 14, and occupied the city.[33] The allies then consolidated and awaited the remainder of the 5th Division and other coalition reinforcements. In early August, the expedition pushed towards the capital where on August 14, it lifted the Boxer siege. By that time, the 13,000-strong Japanese force was the largest single contingent, making up about 40 percent of the approximately 33,000 strong allied expeditionary force.[33] Japanese troops involved in the fighting had acquitted themselves well, although a British military observer felt their aggressiveness, densely packed formations, and over-willingness to attack cost them excessive casualties.[34] For example, during the Tianjin fighting, the Japanese, while comprising less than one quarter (3,800) of the total allied force of 17,000, suffered more than half of the casualties, 400 out of 730.[34] Similarly at Beijing, the Japanese, constituting slightly less than half of the assault force, accounted for almost two-thirds of the losses, 280 of 453.[34]

Russo-Japanese War

 
 
Japanese riflemen during the Russo-Japanese War
 
The Type 38 rifle was adopted by the Imperial Japanese Army in 1905

The Russo–Japanese War (1904–1905) was the result of tensions between Russia and Japan, grown largely out of rival imperialist ambitions toward Manchuria and Korea. The Japanese army inflicted severe losses against the Russians; however, they were not able to deal a decisive blow to the Russian armies. Over-reliance on infantry led to large casualties among Japanese forces, especially during the siege of Port Arthur.[citation needed]

World War I

The Empire of Japan entered the war on the Entente side. Although tentative plans were made to send an expeditionary force of between 100,000 and 500,000 men to France,[35] ultimately the only action in which the Imperial Japanese Army was involved was the careful and well executed attack on the German concession of Qingdao in 1914.[36]

Inter-war years

Siberian intervention

 
Commanding Officers and Chiefs of Staff of the Allied Military Mission to Siberia, Vladivostok during the Allied Intervention

During 1917–18, Japan continued to extend its influence and privileges in China via the Nishihara Loans. During the Siberian Intervention, following the collapse of the Russian Empire after the Bolshevik Revolution, the Imperial Japanese Army initially planned to send more than 70,000 troops to occupy Siberia as far west as Lake Baikal. The army general staff came to view the Tsarist collapse as an opportunity to free Japan from any future threat from Russia by detaching Siberia and forming an independent buffer state.[37] The plan was scaled back considerably due to opposition from the United States.

In July 1918, the U.S. President, Woodrow Wilson, asked the Japanese government to supply 7,000 troops as part of an international coalition of 24,000 troops to support the American Expeditionary Force Siberia.[38] After a heated debate in the Diet, the government of Prime Minister Terauchi Masatake agreed to send 12,000 troops, but under the command of Japan, rather than as part of an international coalition. Japan and the United States sent forces to Siberia to bolster the armies of the White movement leader Admiral Aleksandr Kolchak against the Bolshevik Red Army.

Once the political decision had been reached, the Imperial Japanese Army took over full control under Chief of Staff General Yui Mitsue; and by November 1918, more than 70,000[38] Japanese troops had occupied all ports and major towns in the Russian Maritime Provinces and eastern Siberia.

In June 1920, the United States and its allied coalition partners withdrew from Vladivostok, after the capture and execution of the White Army leader, Admiral Kolchak, by the Red Army. However, the Japanese decided to stay, primarily due to fears of the spread of communism so close to Japan and Japanese-controlled Korea. The Japanese Army provided military support to the Japanese-backed Provisional Priamurye Government, based in Vladivostok, against the Moscow-backed Far Eastern Republic.

The continued Japanese presence concerned the United States, which suspected that Japan had territorial designs on Siberia and the Russian Far East. Subjected to intense diplomatic pressure by the United States and Great Britain, and facing increasing domestic opposition due to the economic and human cost, the administration of Prime Minister Katō Tomosaburō withdrew the Japanese forces in October 1922.[39]

Rise of militarism

In the 1920s the Imperial Japanese Army expanded rapidly and by 1927 had a force of 300,000 men. Unlike western countries, the Army enjoyed a great deal of independence from government. Under the provisions of the Meiji Constitution, the War Minister was held accountable only to the Emperor (Hirohito) himself, and not to the elected civilian government. In fact, Japanese civilian administrations needed the support of the Army in order to survive. The Army controlled the appointment of the War Minister, and in 1936 a law was passed that stipulated that only an active duty general or lieutenant-general could hold the post.[40] As a result, military spending as a proportion of the national budget rose disproportionately in the 1920s and 1930s, and various factions within the military exerted disproportionate influence on Japanese foreign policy.

The Imperial Japanese Army was originally known simply as the Army (rikugun) but after 1928, as part of the Army's turn toward romantic nationalism and also in the service of its political ambitions, it retitled itself the Imperial Army (kōgun).

In 1923, the army consisted of 21 divisions, but in accordance with the 1924 reform it was reduced to 17 divisions. Two leaps in the development of the military industry (1906–1910 and 1931–1934) made it possible to re-equip the armed forces.

Conflict with China

 
IJA amphibious assault ship Shinshū Maru, the world's first landing craft carrier ship to be designed as such.

In 1931, the Imperial Japanese Army had an overall strength of 198,880 officers and men, organized into 17 divisions.[41] The Manchurian incident, as it became known in Japan, was a pretended sabotage of a local Japanese-owned railway, an attack staged by Japan but blamed on Chinese dissidents. Action by the military, largely independent of the civilian leadership, led to the invasion of Manchuria in 1931 and, later, to the Second Sino-Japanese War, in 1937. As war approached, the Imperial Army's influence with the Emperor waned and the influence of the Imperial Japanese Navy increased.[42] Nevertheless, by 1938 the Army had been expanded to 34 divisions.[43]

Conflict with the Soviet Union

From 1932 to 1945 the Empire of Japan and the Soviet Union had a series of conflicts. Japan had set its military sights on Soviet territory as a result of the Hokushin-ron doctrine, and the Japanese establishment of a puppet state in Manchuria brought the two countries into conflict. The war lasted on and off with the last battles of the 1930s (the Battle of Lake Khasan and the Battles of Khalkhin Gol) ending in a decisive victory for the Soviets. The conflicts stopped with the signing of the Soviet–Japanese Neutrality Pact on April 13, 1941.[44] However, later, at the Yalta Conference, Stalin agreed to declare war on Japan; and on August 5, 1945, the Soviet Union voided their neutrality agreement with Japan.[45]

World War II

 
Army uniforms between 1941 and 1945 (US Army poster)

In 1941, the Imperial Japanese Army had 51 divisions[43] and various special-purpose artillery, cavalry, anti-aircraft, and armored units with a total of 1,700,000 people. At the beginning of the Second World War, most of the Japanese Army (27 divisions) was stationed in China. A further 13 divisions defended the Mongolian border, due to concerns about a possible attack by the Soviet Union.[43] From 1942, soldiers were sent to Hong Kong (23rd Army), the Philippines (14th Army), Thailand (15th Army), Burma (15th Army), Dutch East Indies (16th Army), and Malaya (25th Army).[46] By 1945, there were 6 million soldiers in the Imperial Japanese Army.

 
Type 97 Chi-Ha, the most widely produced Japanese medium tank of World War II

From 1943, Japanese troops suffered from a shortage of supplies, especially food, medicine, munitions, and armaments, largely due to submarine interdiction of supplies, and losses to Japanese shipping, which was worsened by a longstanding rivalry with the Imperial Japanese Navy. The lack of supplies caused large numbers of fighter aircraft to become unserviceable for lack of spare parts,[47] and "as many as two-thirds of Japan's total military deaths [to result] from illness or starvation".[48]

Salary

Compared to respective armies in Europe or America, soldiers in the Imperial Japanese Army received a rather meagre salary; however, the cost of living in Japan was also cheaper than in most Western nations. The below table gives figures from December 1941, when one Japanese yen was worth approximately $0.23.[49]

Basic rates of pay[49]
Rank Monthly salary (yen) Monthly salary (USD)
General ¥550 $126.50
Lieutenant general ¥483.33 $111.17
Major general ¥416.66 $95.83
Colonel ¥310–370 $71.30–85.10
Lieutenant colonel ¥220–310 $50.60–71.30
Major ¥170–220 $39.10–50.60
Captain ¥122–155 $28.06–35.65
First lieutenant ¥85–94.16 $19.55–21.66
Warrant officer ¥80–110 $18.40–25.30
Second lieutenant ¥70.83 $16.30
Sergeant major ¥32–75 $7.36–17.25
Probation officer ¥25–40 $5.75–9.20
Sergeant ¥23–30 $5.29–6.90
Corporal ¥20 $4.60
Lance corporal ¥13.50 $3.11
Private first class ¥9 $2.07

For comparison, in 1942, an American private was paid approximately $50 per month (or 204 yen),[50] meaning the lowest ranking soldier in the United States military was earning equivalent to the maximum salary of an Imperial Japanese major, or the base salary of an Imperial Japanese lieutenant colonel, and about 25 times as much as an Imperial Japanese soldier of the same rank. While disproportionate salary ranges were not uncommon between militaries during World War II, for example Australian enlistees could expect to receive roughly triple as much in pay as their counterparts fighting for the United Kingdom,[51] by any standards, despite being widely considered a "first rate" or professional fighting force, men serving in the IJA were very poorly compensated.[52]

Complicating matters further was the fact that, by 1942, most Japanese soldiers were paid using the Japanese military yen (JMY), an unbacked currency that could not be redeemed for the regular Japanese yen. In territories under Japanese occupation, the military yen – or "Japanese invasion money", as it came to be known by the locals – was the only legal tender in circulation. The Japanese authorities seized or ordered surrendered all other bank notes in territories under their occupation and provided compensation at an "exchange rate" as they saw fit, in the form of JMYs. This had the effect of affording Japanese soldiers in many occupied territories a higher degree of return for their low pay than they otherwise would have received.[53] However, at the end of the war, the Imperial Japanese ministry of finance cancelled all military bank notes, rendering the military yen worthless.[54][55]

War crimes

 
Indonesian child recruits being trained by Japanese officers as human shield, 1945
 
Many thousands of Indonesian were taken away as forced labourers (romusha) for Japanese military projects, including the Burma-Siam and Saketi-Bayah railways, and suffered or died as a result of ill-treatment and starvation. Pictured is an internment camp in Jakarta, c. 1945

Throughout the Second Sino-Japanese War and World War II, the Imperial Japanese Army had shown immense brutality and engaged in numerous atrocities against civilians, as well as prisoners of war – with the Nanking Massacre being the most well known example.[56] Other war crimes committed by the Imperial Japanese Army included rape and forced prostitution, death marches, using biological warfare against civilians, and the execution of prisoners of war. Such atrocities throughout the war caused many millions of deaths.[57]

Post-World War II

Ground Self-Defense Force

Article 9 of the Japanese Constitution renounced the right to use force as a means of resolving disputes.[58] This was enacted by the Japanese in order to prevent militarism, which had led to conflict. However, in 1947 the Public Security Force was formed; later in 1954, in the early stages of the Cold War, the Public Security Force formed the basis of the newly created Ground Self-Defense Force.[59] Although significantly smaller than the former Imperial Japanese Army and nominally for defensive purposes only, this force constitutes the modern army of Japan.

Continued resistance

Separately, some soldiers of the Imperial Japanese Army continued to fight on isolated Pacific islands until at least the 1970s, with the last known Japanese soldier surrendering in 1974. Intelligence officer Hiroo Onoda, who surrendered on Lubang Island in the Philippines in March 1974, and Teruo Nakamura, who surrendered on the Indonesian island of Morotai in December 1974, appear to have been the last holdouts.[60][61][62][63]

Growth and organization of the IJA

 
Disposition of the Imperial Japanese Army in Japan at the time of its capitulation, 18 August 1945
  • 1870: consisted of 12,000 men.
  • 1873: Seven divisions of c. 36,000 men (c. 46,250 including reserves)
  • 1885: consisted of seven divisions including the Imperial Guard Division.
  • In the early 1900s, the IJA consisted of 12 divisions, the Imperial Guard Division, and numerous other units. These contained the following:
    • 380,000 active duty and 1st Reserve personnel: former Class A and B(1) conscripts after two-year active tour with 17 and 1/2 year commitment
    • 50,000 Second line Reserve: Same as above but former Class B(2) conscripts
    • 220,000 National Army
      • 1st National Army: 37- to 40-year-old men from end of 1st Reserve to 40 years old.
      • 2nd National Army: untrained 20-year-olds and over-40-year-old trained reserves.
    • 4,250,000 men available for service and mobilization.
  • 1922: 21 divisions and 308,000 men
  • 1924: Post-WWI reductions to 16 divisions and 250,800 men
  • 1925: Reduction to 12 divisions
  • 1934: army increased to 17 divisions
  • 1936: 250,000 active.
  • 1940: 376,000 active with 2 million reserves in 31 divisions
    • 2 divisions in Japan (Imperial Guard plus one other)
    • 2 divisions in Korea
    • 27 divisions in China and Manchuria
  • In late 1941: 460,000 active in
    • 41 divisions
    • plus 59 brigade equivalents.
      • Independent brigades, Independent Mixed Brigades, Cavalry Brigades, Amphibious Brigades, Independent Mixed regiments, Independent Regiments.
  • 1945: 5 million active in 145 divisions (includes three Imperial Guard), plus numerous individual units, with a large Volunteer Fighting Corps.
    • includes 650,000 Imperial Japanese Army Air Service.
    • Japan Defense Army in 1945 had 55 divisions (53 Infantry and two armor) and 32 brigades (25 infantry and seven armor) with 2.35 million men.
    • 2.25 million Army Labour Troops
    • 1.3 million Navy Labour Troops
    • 250,000 Special Garrison Force
    • 20,000 Kempetai[64]

Total military in August 1945 was 6,095,000 including 676,863 Army Air Service. [65]

Casualties

Over the course of the Imperial Japanese Army's existence, millions of its soldiers were either killed, wounded or listed as missing in action.

  • Taiwan Expedition of 1874: 543 (12 killed in battle and 531 by disease)
  • First Sino-Japanese War: The IJA suffered 1,132 dead and 3,758 wounded
  • Russo-Japanese War: The number of total Japanese dead in combat is put at around 47,000, with around 80,000 if disease is included
  • World War I: 1,455 Japanese were killed, mostly at the Battle of Tsingtao
  • World War II:
    • Deaths
      • Between 2,120,000 and 2,190,000 Imperial Armed Forces dead including non-combat deaths (includes 1,760,955 killed in action),
      • KIA Breakdown by Theatre:
        • Army 1931–1945: 1,569,661 [China: 435,600 KIA, Against U.S. Forces: 659,650 KIA, Burma Campaign: 163,000 KIA, Australian Combat Zone: 199,511 KIA, French Indochina: 7,900 KIA, U.S.S.R/Manchuria: 45,900 KIA, Others/Japan: 58,100 KIA][66]
        • Navy: 473,800 KIA All Theatres.
      • 672,000 known civilian dead,
    • 810,000 missing in action and presumed dead.
    • 7,500 prisoners of war

See also

Notes

  1. ^ Japanese: 大日本帝国陸軍, Hepburn: Dai-Nippon Teikoku Rikugun, "Army of the Greater Japanese Empire"
  2. ^ 官軍, kangun

References

  1. ^ Jansen 2002, p. 60.
  2. ^ Drea 2009, p. 8.
  3. ^ Jaundrill 2016, p. 86.
  4. ^ a b Jaundrill 2016, p. 87.
  5. ^ a b c Ravina 2004, p. 154.
  6. ^ a b c d e f g Drea 2009, p. 10.
  7. ^ a b Drea 2009, p. 19.
  8. ^ a b c Drea 2009, p. 20.
  9. ^ Jansen 2002, p. 343.
  10. ^ Jaundrill 2016, p. 96.
  11. ^ Hunter-Chester, David (2019), Mansoor, Peter R.; Murray, Williamson (eds.), "Imperial Japanese Army Culture, 1918–1945: Duty Heavier than a Mountain, Death Lighter than a Feather", The Culture of Military Organizations, Cambridge University Press, pp. 208–225, doi:10.1017/9781108622752.010, ISBN 9781108485739, S2CID 211662774
  12. ^ Jansen 2002, p. 397.
  13. ^ a b c d e f Drea 2009, p. 29.
  14. ^ a b c Jaundrill 2016, p. 95.
  15. ^ Drea 2003, p. 76.
  16. ^ Drea 2009, p. 23.
  17. ^ a b c d e f Drea 2009, p. 24.
  18. ^ a b Jaundrill 2016, p. 107.
  19. ^ Harries & Harries 1994, pp. 22–29.
  20. ^ Harries & Harries 1994, pp. 20–24.
  21. ^ Harries & Harries 1994, p. 363.
  22. ^ Harries & Harries 1994, p. 28.
  23. ^ a b c d Olender 2014, p. 42.
  24. ^ Olender 2014, p. 43.
  25. ^ a b c d e Olender 2014, p. 44.
  26. ^ Olender 2014, p. 45.
  27. ^ a b c Drea 2009, p. 79.
  28. ^ Drea 2009, p. 80.
  29. ^ Olender 2014, p. 56.
  30. ^ Drea 2009, pp. 82–83.
  31. ^ a b c d Drea 2009, p. 83.
  32. ^ a b Drea 2009, p. 97.
  33. ^ a b c d e f g h i j k Drea 2009, p. 98.
  34. ^ a b c Drea 2009, p. 99.
  35. ^ Harries & Harries 1994, p. 109.
  36. ^ Harries & Harries 1994, pp. 110–111.
  37. ^ Humphreys 1996, p. 25.
  38. ^ a b Harries & Harries 1994, p. 123.
  39. ^ Harries & Harries 1994, p. 124.
  40. ^ Harries & Harries 1994, p. 193.
  41. ^ Kelman, p. 41
  42. ^ Harries & Harries 1994, p. 197.
  43. ^ a b c Jowett 2002, p. 7.
  44. ^ Soviet-Japanese Neutrality Pact April 13, 1941. (Avalon Project at Yale University)
  45. ^ "Battlefield – Manchuria – The Forgotten Victory", Battlefield (documentary series), 2001, 98 minutes.
  46. ^ Jowett 2002, pp. 15–16, 21.
  47. ^ Bergerund, Eric. Fire in the Sky (Boulder, CO: Westview Press, 2000).
  48. ^ Gilmore 1998, p. 150.
  49. ^ a b US Army Field Manual 30-480: Handbook on Japanese Military Forces. 1944. p. 8.
  50. ^ "Here's how much US troops were paid in every American war". Business Insider. 7 March 2018. Retrieved 16 December 2020.
  51. ^ "Recruitment – Anzac Voices". Australian War Memorial. 17 October 2019. Retrieved 16 December 2020.
  52. ^ "A Question for the Imperial Japanese Army". HistoryNet.com. 4 January 2012. Retrieved 16 December 2020.
  53. ^ Wong Hon Sum, The Japanese Occupation of Malaya (Singapore) and its Currency (Singapore, 1996, ISBN 9810081901)
  54. ^ . Asian Economic News. Published June 7/14, 1999. Retrieved December 16, 2020.
  55. ^ Gregg Huff and Shinobu Majima (December 2013). "Financing Japan's World War II Occupation of Southeast Asia". The Journal of Economic History. Cambridge University Press. pp. 937–977
  56. ^ Harries & Harries 1994, pp. 475–476.
  57. ^ "Sterling and Peggy Seagrave: Gold Warriors". The Education Forum.
  58. ^ Harries & Harries 1994, p. 471.
  59. ^ Harries & Harries 1994, p. 487.
  60. ^ Kristof, Nicholas D. "Shoichi Yokoi, 82, Is Dead; Japan Soldier Hid 27 Years", The New York Times. September 26, 1997.
  61. ^ "The Last PCS for Lieutenant Onoda", Pacific Stars and Stripes, March 13, 1974, p. 6
  62. ^ "Onoda Home; 'It Was 30 Years on Duty'", Pacific Stars and Stripes, March 14, 1974, p. 7
  63. ^ . web.archive.org. February 1, 2009. Archived from the original on February 1, 2009. Retrieved July 21, 2021.
  64. ^ The Japanese Army 1931–1945 (2) Osprey Men-at- Arms 369 Page 3 by Phillip Jowett Copyright 2002/03/04/05 ISBN 1841763543
  65. ^ pg 217–218, "The Army", Japan Year Book 1938–1939, Kenkyusha Press, Foreign Association of Japan, Tokyo
  66. ^ "Dispositions and deaths". Australia–Japan Research Project. 1964. Retrieved 29 December 2017.

Bibliography

  • Drea, Edward J. (2009). Japan's Imperial Army: Its Rise and Fall, 1853–1945. Lawrence, Kansas: University Press of Kansas. ISBN 9780803217089.
  • Drea, Edward J. (2003). "The Imperial Japanese Army (1868–1945): Origins, Evolution, Legacy". War in the Modern World Since 1815. Routledge. ISBN 0415251400.
  • Gilmore, Allison B. (1998). You Can't Fight Tanks with Bayonets: Psychological Warfare against the Japanese Army in the South West Pacific. Lincoln, Nebraska: University of Nebraska Press. ISBN 0803221673.
  • Harries, Meirion; Harries, Susie (1994). Soldiers of the Sun: The Rise and Fall of the Imperial Japanese Army. New York: Random House. ISBN 0679753036.
  • Humphreys, Leonard A. (1996). The Way of the Heavenly Sword: The Japanese Army in the 1920s. Stanford University Press. ISBN 0804723753.
  • Jansen, Marius B. (2002). The Making of Modern Japan. Harvard University Press. ISBN 0674003349.
  • Jaundrill, Colin D. (2016). Benjamin A. Haynes (ed.). Samurai to Soldier: Remaking Military Service in Nineteenth-Century Japan. Melissa Haynes. Cornell University Press. ISBN 9781501706646.
  • Jowett, Philip (2002). The Japanese Army 1931–45 (1). Botley, Oxford: Osprey Publishing. ISBN 1841763535.
  • Olender, Piotr (2014). Sino-Japanese Naval War 1894–1895. MMPBooks. ISBN 9788363678302.
  • Orbach, Danny (2017). Curse on This Country: The Rebellious Army of Imperial Japan. Cornell University Press. ISBN 978-1501708336.
  • Ravina, Mark (2004). The Last Samurai : The Life and Battles of Saigō Takamori. John Wiley & Sons. ISBN 0471089702.

Further reading

  • Barker, A.J. (1979) Japanese Army Handbook, 1939–1945 (London: Ian Allan, 1979)
  • Best, Antony. (2002) British intelligence and the Japanese challenge in Asia, 1914–1941 (Palgrave/Macmillan, 2002).
  • Chen, Peter. "Horii, Tomitaro". World War II Database.
  • Bix, Herbert (2000). Hirohito and the Making of Modern Japan. New York: HarperCollinsPublishers.
  • Denfeld, D. Colt. (1997) Hold the Marianas: The Japanese Defense of the Mariana Islands (White Mane Publishing Company, 1997).
  • Coox, A.D. (1985) Nomonhan: Japan against Russia, 1939 (Stanford UP, 1985)
  • Coox, A.D. (1988) "The Effectiveness of the Japanese Military Establishment in the Second World War", in A.R. Millett and W. Murray, eds, Military Effectiveness, Volume III: the Second World War (Allen & Unwin, 1988), pp. 1–44
  • Drea, Edward J. (1998). In the Service of the Emperor: Essays on the Imperial Japanese Army. University of Nebraska Press. ISBN 0803217080.
  • Ford, Douglas. (2008) "'The best equipped army in Asia'?: US military intelligence and the Imperial Japanese Army before the Pacific War, 1919–1941." International journal of intelligence and counterintelligence 21.1 (2008): 86–121.
  • Ford, Douglas. (2009) "Dismantling the ‘Lesser Men’and ‘Supermen’ myths: US intelligence on the imperial Japanese army after the fall of the Philippines, winter 1942 to spring 1943." Intelligence and National Security 24.4 (2009): 542–573. online
  • Frühstück, Sabine. (2007) Uneasy warriors: Gender, memory, and popular culture in the Japanese army (Univ of California Press, 2007).
  • Gruhl, Werner. (2010) Imperial Japan's World War Two: 1931–1945 (Transaction Publishers).
  • Hayashi, Saburo; Alvin D. Coox (1959). Kogun: The Japanese Army in the Pacific War. Quantico, VA: The Marine Corps Association.
  • Kelman, Richard; Leo J. Daugherty (2002). Fighting Techniques of a Japanese Infantryman in World War II: Training, Techniques and Weapons. Zenith Imprint. ISBN 0760311455.
  • Kublin, Hyman. "The 'Modern' Army of Early Meiji Japan". The Far Eastern Quarterly, 9#1 (1949), pp. 20–41.
  • Kuehn, John T. (2014) A Military History of Japan: From the Age of the Samurai to the 21st Century (ABC-CLIO, 2014).
  • Norman, E. Herbert. "Soldier and Peasant in Japan: The Origins of Conscription." Pacific Affairs 16#1 (1943), pp. 47–64.
  • Rottman, Gordon L. (2013) Japanese Army in World War II: Conquest of the Pacific 1941–42 (Bloomsbury Publishing, 2013).
  • Rottman, Gordon L. (2012) Japanese Infantryman 1937–45: Sword of the Empire (Bloomsbury Publishing, 2012).
  • Sisemore, Major James D. (2015) The Russo-Japanese War, Lessons Not Learned (Pickle Partners Publishing, 2015).
  • Storry, Richard. (1956) "Fascism in Japan: The Army Mutiny of February 1936" History Today (Nov 1956) 6#11 pp 717–726.
  • Wood, James B. (2007) Japanese Military Strategy in the Pacific War: Was Defeat Inevitable? (Rowman & Littlefield Publishers, 2007).
  • Yenne, Bill. (2014) The Imperial Japanese Army: The Invincible Years 1941–42 (Bloomsbury Publishing, 2014).

Primary sources

  • United States War Department. TM 30–480 Handbook On Japanese Military Forces, 1942 (1942) online; 384pp; highly detailed description of wartime IJA by U.S. Army Intelligence.

External links

  • Overview of Imperial Japanese Army weapons and armaments in World War II
  • Army of the Land of the Rising Sun 100 years ago. Part 1. Leap from the Middle Ages into the XX century (in Russian) (part 1 of 4)
  • The PBS program Victory in the Pacific 2010-03-26 at the Wayback Machine
  • Imperial Japanese Army 3rd Platoon reenactor's resource 2012-01-28 at the Wayback Machine

imperial, japanese, army, official, ground, based, armed, force, empire, japan, from, 1868, 1945, controlled, general, staff, office, ministry, army, both, which, were, nominally, subordinate, emperor, japan, supreme, commander, army, imperial, japanese, navy,. The Imperial Japanese Army a was the official ground based armed force of the Empire of Japan from 1868 to 1945 It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army both of which were nominally subordinate to the Emperor of Japan as supreme commander of the army and the Imperial Japanese Navy Later an Inspectorate General of Aviation became the third agency with oversight of the army During wartime or national emergencies the nominal command functions of the emperor would be centralized in an Imperial General Headquarters IGHQ an ad hoc body consisting of the chief and vice chief of the Army General Staff the Minister of the Army the chief and vice chief of the Naval General Staff the Inspector General of Aviation and the Inspector General of Military Training Imperial Japanese Army大日本帝國陸軍 Dai Nippon Teikoku RikugunThe ensign of the Imperial Japanese ArmyActive1868 1945Country Empire of JapanTypeArmyRoleMilitary ground forceSize6 095 000 in August 1945Part ofImperial Armed ForcesColors Red WhiteEquipmentArmy equipmentEngagementsBoshin War Invasion of Taiwan 1874 Shinpuren Rebellion Satsuma Rebellion First Sino Japanese War Boxer Rebellion Invasion of Taiwan 1895 Russo Japanese War World War I Siberian Intervention Japanese invasion of Manchuria Second Sino Japanese War World War IICommandersEmperor of JapanMeijiTaishōShōwaMinister of the ArmyŌyama Iwao first Sadamu Shimomura last Chief of the General StaffYamagata Aritomo first Yoshijirō Umezu last InsigniaInfantry Regimental Colour Contents 1 History 1 1 Origins 1868 1871 1 1 1 Boshin War 1 1 2 Struggles to form a centralized army 1 2 Foundation of a national army 1871 1873 1 2 1 Establishment of the Imperial Guard and institutional reforms 1 2 2 Conscription 1 3 Further development and modernization 1873 1894 1 3 1 Foreign assistance 1 3 2 Taiwan Expedition 1 4 First Sino Japanese War 1 5 Boxer Rebellion 1 6 Russo Japanese War 1 7 World War I 1 8 Inter war years 1 8 1 Siberian intervention 1 8 2 Rise of militarism 1 9 Conflict with China 1 10 Conflict with the Soviet Union 1 11 World War II 1 11 1 Salary 1 11 2 War crimes 1 12 Post World War II 1 12 1 Ground Self Defense Force 1 12 2 Continued resistance 2 Growth and organization of the IJA 3 Casualties 4 See also 5 Notes 6 References 7 Bibliography 8 Further reading 8 1 Primary sources 9 External linksHistory EditOrigins 1868 1871 Edit In the mid 19th century Japan had no unified national army and the country was made up of feudal domains han with the Tokugawa shogunate bakufu in overall control which had ruled Japan since 1603 The bakufu army although a large force was only one among others and bakufu efforts to control the nation depended upon the cooperation of its vassals armies 1 The opening of the country after two centuries of seclusion subsequently led to the Meiji Restoration and the Boshin War in 1868 The domains of Satsuma and Chōshu came to dominate the coalition against the shogunate Boshin War Edit Main article Boshin War Ukiyo E depicting the retreat of shogunate forces in front of the Imperial Army Kangun Yodo Castle is shown in the background On 27 January 1868 tensions between the shogunate and imperial sides came to a head when Tokugawa Yoshinobu marched on Kyoto accompanied by a 15 000 strong force some of which had been trained by French military advisers They were opposed by 5 000 troops from the Satsuma Chōshu and Tosa domains At the two road junctions of Toba and Fushimi just south of Kyoto the two forces clashed On the second day an Imperial banner was given to the defending troops and a member of the Imperial Family the Prince Ninnaji was named nominal commander in chief in effect making the pro imperial forces officially an Imperial army b 2 The bakufu forces eventually retreated to Osaka with the remaining forces ordered to retreat to Edo Yoshinobu and his closest advisors left for Edo by ship 3 The encounter at Toba Fushimi between the imperial and shogunate forces marked the beginning of the conflict With the court in Kyoto firmly behind the Satsuma Chōshu Tosa coalition other domains that were sympathetic to the cause such as Tottori Inaba Aki Hiroshima and Hizen Saga emerged to take a more active role in military operations 4 Western domains that had either supported the shogunate or remained neutral also quickly announced their support of the restoration movement 4 The nascent Meiji state required a new military command for its operations against the shogunate In 1868 the Imperial Army being just a loose amalgam of domain armies the government created four military divisions the Tōkaidō Tōsandō San indō and Hokurikudō each of which was named for a major highway 5 Overseeing these four armies was a new high command the Eastern Expeditionary High Command Tōsei daisō tokufu whose nominal head was prince Arisugawa no miya with two court nobles as senior staff officers 5 This connected the loose assembly of domain forces with the imperial court which was the only national institution in a still unformed nation state 5 The army continually emphasized its link with the imperial court firstly to legitimize its cause secondly to brand enemies of the imperial government as enemies of the court and traitors and lastly to gain popular support 6 To supply food weapons and other supplies for the campaign the imperial government established logistical relay stations along three major highways These small depots held stockpiled material supplied by local pro government domains or confiscated from the bakufu and others opposing the imperial government Local villagers were routinely impressed as porters to move and deliver supplies between the depots and frontline units 6 Struggles to form a centralized army Edit Initially the new army fought under makeshift arrangements with unclear channels of command and control and no reliable recruiting base 6 Although fighting for the imperial cause many of the units were loyal to their domains rather than the imperial court In March 1869 the imperial government created various administrative offices including a military branch and in the following month organized an imperial bodyguard of 400 to 500 which consisted of Satsuma and Chōshu troops strengthened by veterans of the encounter at Toba Fushimi as well as yeoman and masterless samurai from various domains 6 The imperial court told the domains to restrict the size of their local armies and to contribute to funding a national officers training school in Kyoto 6 However within a few months the government disbanded both the military branch and the imperial bodyguard the former was ineffective while the latter lacked modern weaponry and equipment To replace them two new organizations were created One was the military affairs directorate which was composed of two bureaus one for the army and one for the navy The directorate drafted an army from troop contributions from each domain proportional to each domain s annual rice production koku This conscript army chōheigun integrated samurai and commoners from various domains into its ranks 6 As the war continued the military affairs directorate expected to raise troops from the wealthier domains and in June the organization of the army was fixed where each domain was required to send ten men for each 10 000 koku of rice produced However this policy put the imperial government in direct competition with the domains for military recruitment which was not rectified until April 1868 when the government banned the domains from enlisting troops Consequently the quota system never fully worked as intended and was abolished the following year 6 The Imperial forces encountered numerous difficulties during the war especially during the campaign in Eastern Japan Headquarters in faraway Kyoto often proposed plans at odds with the local conditions which led to tensions with officers in the field who in many cases ignored centralized direction in favor of unilateral action 7 The army lacked a strong central staff that was capable of enforcing orders Consequently military units were at the mercy of individual commanders leadership and direction This was not helped by the absence of a unified tactical doctrine which left units to fight according to the tactics favored by their respective commanders There was increased resentment by many lower ranked commanders as senior army positions were monopolized by the nobility together with samurai from Chōshu and Satsuma 7 The use of commoners within the new army created resentment among the samurai class Although the nascent Meiji government achieved military success the war left a residue of disgruntled warriors and marginalized commoners together with a torn social fabric 8 The Koishikawa Arsenal in Tokyo inaugurated in 1871 soon after the Meiji restoration Foundation of a national army 1871 1873 Edit Prince Aritomo Yamagata a field marshal in the Imperial Japanese Army and twice Prime Minister of Japan He was one of the main architects of the military foundations of early modern Japan Yamagata Aritomo can be seen as the father of Japanese militarism After the defeat of the Tokugawa shogunate and operations in Northeastern Honshu and Hokkaido a true national army did not exist Many in the restoration coalition had recognized the need for a strong centralized authority and although the imperial side was victorious the early Meiji government was weak and the leaders had to maintain their standing with their domains whose military forces was essential for whatever the government needed to achieve 9 The leaders of the restoration were divided over the future organization of the army Ōmura Masujirō who had sought a strong central government at the expense of the domains advocated for the creation of a standing national army along European lines under the control of the government the introduction of conscription for commoners and the abolition of the samurai class 8 Ōkubo Toshimichi preferred a small volunteer force consisting of former samurai 8 10 Ōmura s views for modernizing Japan s military led to his assassination in 1869 and his ideas were largely implemented after his death by Yamagata Aritomo Aritomo has been described as the father of the Imperial Japanese Army 11 Yamagata had commanded mixed commoner samurai Chōshu units during the Boshin War and was convinced of the merit of peasant soldiers 12 Although he himself was part of the samurai class albeit of insignificant lower status Yamagata distrusted the warrior class several members of whom he regarded as clear dangers to the Meiji state 13 Establishment of the Imperial Guard and institutional reforms Edit Barrack of the Imperial Guard circa 1940 In March 1871 the War Ministry announced the creation of an Imperial Guard Goshinpei of six thousand men 14 consisting of nine infantry battalions two artillery batteries and two cavalry squadrons 15 The emperor donated 100 000 ryō to underwrite the new unit which was subordinate to the court 16 It was composed of members of the Satsuma Chōshu and Tosa domains who had led the restoration Satsuma provided four battalions of infantry and four artillery batteries Chōshu provided three battalions of infantry Tosa two battalions of infantry two squadrons of cavalry and two artillery batteries 14 For the first time the Meiji government was able to organize a large body of soldiers under a consistent rank and pay scheme with uniforms which were loyal to the government rather than the domains 14 The Imperial Guard s principal mission was to protect the throne by suppressing domestic samurai revolts peasant uprisings and anti government demonstrations 17 The possession of this military force was a factor in the government s abolition of the han system The military ministry Hyōbushō was reorganized in July 1871 on August 29 simultaneously with the decree abolishing the domains the Dajōkan ordered local daimyos to disband their private armies and turn their weapons over to the government 17 Although the government played on the foreign threat especially Russia s southward expansion to justify a national army the immediately perceived danger was domestic insurrection 17 Consequently on August 31 the country was divided into four military districts each with its own chindai garrison to deal with peasant uprisings or samurai insurrections The Imperial Guard formed the Tokyo garrison whereas troops from the former domains filled the ranks of the Osaka Kumamoto and Sendai garrisons The four garrisons had a total of about 8 000 troops mostly infantry but also a few hundred artillerymen and engineers 17 Smaller detachments of troops also guarded outposts at Kagoshima Fushimi Nagoya Hiroshima and elsewhere By late December 1871 the army set modernization and coastal defense as priorities long term plans were devised for an armed force to maintain internal security defend strategic coastal areas train and educate military and naval officers and build arsenals and supply depots 17 Despite previous rhetoric about the foreign menace little substantive planning was directed against Russia In February 1872 the military ministry was abolished and separate army and navy ministries were established 17 Conscription Edit Marquis Nozu Michitsura a field marshal in the early Imperial Japanese Army He was appointed as chief of staff of the Imperial Guard Japan in 1874 The conscription ordinance enacted on January 10 1873 made universal military service compulsory for all male subjects in the country The law called for a total of seven years of military service three years in the regular army jōbigun two years in the reserve dai ichi kōbigun and an additional two years in the second reserve daini kōbigun 18 All able bodied males between the ages of 17 and 40 were considered members of the national guard kokumingun which would only see service in a severe national crisis such as an attack or invasion of Japan The conscription examination decided which group of recruits would enter the army those who failed the exam were excused from all examinations except for the national guard Recruits who passed entered the draft lottery where some were selected for active duty A smaller group would be selected for replacement duty hoju eki should anything happen to any of the active duty soldiers the rest were dismissed 18 One of the primary differences between the samurai and the peasant class was the right to bear arms this ancient privilege was suddenly extended to every male in the nation 19 There were several exemptions including criminals those who could show hardship the physically unfit heads of households or heirs students government bureaucrats and teachers 13 A conscript could also purchase an exemption for 270 which was an enormous sum for the time and which restricted this privilege to the wealthy 13 Under the new 1873 ordinance the conscript army was composed mainly of second and third sons of impoverished farmers who manned the regional garrisons while former samurai controlled the Imperial Guard and the Tokyo garrison 13 Marquis Jutoku Saigo a general in the early Imperial Japanese Army He is the nephew of Saigō Takamori the leader of Satsuma Rebellion of 1877 Many of the rebels were incorporated into the Imperial Army after the failure of the armed uprising Initially because of the army s small size and numerous exemptions relatively few young men were actually conscripted for a three year term on active duty 13 In 1873 the army numbered approximately 17 900 from a population of 35 million at the time it doubled to about 33 000 in 1875 13 The conscription program slowly built up the numbers Public unrest began in 1874 reaching the apex in the Satsuma Rebellion of 1877 which used the slogans oppose conscription oppose elementary schools and fight Korea It took a year for the new army to crush the uprising but the victories proved critical in creating and stabilizing the Imperial government and to realize sweeping social economic and political reforms that enabled Japan to become a modern state that could stand comparison to France Germany and other European powers Further development and modernization 1873 1894 Edit Foreign assistance Edit The early Imperial Japanese Army was developed with the assistance of advisors from France 20 through the second French military mission to Japan 1872 80 and the third French military mission to Japan 1884 89 However after France s defeat in 1871 the Japanese government switched to the victorious Germans as a model From 1886 to April 1890 it hired German military advisors Major Jakob Meckel replaced in 1888 by von Wildenbruck and Captain von Blankenbourg to assist in the training of the Japanese General Staff In 1878 the Imperial Japanese Army General Staff Office based on the German General Staff was established directly under the Emperor and was given broad powers for military planning and strategy Other known foreign military consultants were Major Pompeo Grillo from the Kingdom of Italy who worked at the Osaka foundry from 1884 to 1888 followed by Major Quaratezi from 1889 to 1890 and Captain Schermbeck from the Netherlands who worked on improving coastal defenses from 1883 to 1886 Japan did not use foreign military advisors between 1890 and 1918 until the French military mission to Japan 1918 19 headed by Commandant Jacques Paul Faure was requested to assist in the development of the Japanese air services 21 Taiwan Expedition Edit Main article Japanese invasion of Taiwan 1874 Commander in chief Saigō Tsugumichi sitting at the center pictured with leaders of the Seqalu tribe The Japanese invasion of Taiwan under Qing rule in 1874 was a punitive expedition by Japanese military forces in response to the Mudan Incident of December 1871 The Paiwan people who are indigenous peoples of Taiwan murdered 54 crewmembers of a wrecked merchant vessel from the Ryukyu Kingdom on the southwestern tip of Taiwan 12 men were rescued by the local Chinese speaking community and were transferred to Miyako jima in the Ryukyu Islands The Empire of Japan used this as an excuse to both assert sovereignty over the Ryukyu Kingdom which was a tributary state of both Japan and Qing China at the time and to attempt the same with Taiwan a Qing territory It marked the first overseas deployment of the Imperial Japanese Army and Navy 22 An Imperial Rescript to Soldiers and Sailors of 1882 called for unquestioning loyalty to the Emperor by the new armed forces and asserted that commands from superior officers were equivalent to commands from the Emperor himself Thenceforth the military existed in an intimate and privileged relationship with the imperial institution Top ranking military leaders were given direct access to the Emperor and the authority to transmit his pronouncements directly to the troops The sympathetic relationship between conscripts and officers particularly junior officers who were drawn mostly from the peasantry tended to draw the military closer to the people In time most people came to look more for guidance in national matters more to military than to political leaders Count Nogi Maresuke a general in the Imperial Japanese Army and the third governor of Taiwan By the 1890s the Imperial Japanese Army had grown to become the most modern army in Asia well trained well equipped and with good morale However it was basically an infantry force deficient in cavalry and artillery when compared with its European contemporaries Artillery pieces which were purchased from America and a variety of European nations presented two problems they were scarce and the relatively small number that were available were of several different calibers causing problems with ammunition supply citation needed First Sino Japanese War Edit Main article First Sino Japanese War Type 13 Top amp Type 22 bottom Murata rifle Murata rifle was the first indigenously produced Japanese service rifle adopted in 1880 Japanese troops during the Sino Japanese War In the early months of 1894 the Donghak Rebellion broke out in southern Korea and had soon spread throughout the rest of the country threatening the Korea capital Seoul itself The Chinese since the beginning of May had taken steps to prepare the mobilization of their forces in the provinces of Zhili Shandong and in Manchuria as a result of the tense situation on the Korean peninsula 23 These actions were planned more as an armed demonstration intended to strengthen the Chinese position in Korea rather than as a preparation for war with Japan 23 On June 3 the Chinese government accepted the requests from the Korean government to send troops to help quell the rebellion additionally they also informed the Japanese of the action It was decided to send 2 500 men to Asan about 70 km from the capital Seoul The troops arrived in Asan on June 9 and were additionally reinforced by 400 more on June 25 a total of about 2 900 Chinese soldiers were at Asan 23 From the very outset the developments in Korea had been carefully observed in Tokyo Japanese government had soon become convinced that the Donghak Rebellion would lead to Chinese intervention in Korea As a result soon after learning word about the Korean government s request for Chinese military help immediately ordered all warships in the vicinity to be sent to Pusan and Chemulpo 23 On June 9 a formation of 420 rikusentai selected from the crews of the Japanese warships was immediately dispatched to Seoul where they served temporarily as a counterbalance to the Chinese troops camped at Asan 24 Simultaneously the Japanese decided to send a reinforced brigade of approximately 8 000 troops to Korea 25 The reinforced brigade included auxiliary units under the command of General Oshima Yoshimasa was fully transported to Korea by June 27 25 The Japanese stated to the Chinese that they were willing to withdraw the brigade under General Oshima if the Chinese left Asan prior 25 However when on 16 July 8 000 Chinese troops landed near the entrance of the Taedong River to reinforce Chinese troops garrisoned in Pyongyang the Japanese delivered Li Hongzhang an ultimatum threatening to take action if any further troops were sent to Korea Consequently General Oshima in Seoul and commanders of the Japanese warships in Korean waters received orders allowing them to initiate military operations if any more Chinese troops were sent to Korea 25 Despite this ultimatum Li considered that Japanese were bluffing and were trying to probe the Chinese readiness to make concessions 25 He decided therefore to reinforce Chinese forces in Asan with a further 2 500 troops 1 300 of which arrived in Asan during the night of July 23 24 At the same time in the early morning of July 23 the Japanese had taken control of the Royal Palace in Seoul and imprisoned the King Gojong forcing him to renounce ties with China 26 Count Akiyama Yoshifuru served as a cavalry regimental commander in the First Sino Japanese War of 1894 1895 In the Russo Japanese War of 1904 1905 he led his troops against the Cossack cavalry divisions of the Imperial Russian Army During the almost two month interval prior to the declaration of war the two service staffs developed a two stage operational plan against China The army s 5th Division would land at Chemulpo to prevent a Chinese advance in Korea while the navy would engage the Beiyang fleet in a decisive battle in order to secure control of the seas 27 If the navy defeated the Chinese fleet decisively and secured command of the seas the larger part of the army would undertake immediate landings on the coast between Shanhaiguan and Tientsin and advance to the Zhili plain in order to defeat the main Chinese forces and bring the war to a swift conclusion 27 If neither side gained control of the sea and supremacy the army would concentrate on the occupation of Korea and exclude Chinese influence there 27 Lastly if the navy was defeated and consequently lost command of the sea Japanese forces in Korea would be ordered to hang on and fight a rearguard action while the bulk of the army would remain in Japan in preparation to repel a Chinese invasion This worst case scenario also foresaw attempts to rescue the beleaguered 5th Division in Korea while simultaneously strengthening homeland defenses The army s contingency plans which were both offensive and defensive depended on the outcome of the naval operations 28 Prince Katsura Tarō three times Prime Minister of Japan Katsura was the Vice Minister of War during the period He commanded the IJA 3rd Division under his mentor Field Marshal Yamagata Aritomo during the First Sino Japanese War Clashes between Chinese and Japanese forces at Pungdo and Seongwhan caused irreversible changes to Sino Japanese relations and meant that a state of war now existed between the two countries 29 The two governments officially declared war on August 1 Initially the general staff s objective was to secure the Korean peninsula before the arrival of winter and then land forces near Shanhaiguan 30 However as the navy was unable to bring the Beiyang fleet into battle in mid August temporarily withdrew from the Yellow Sea to refit and replenish its ships 31 As a consequence in late August the general staff ordered an advance overland to the Zhili plain via Korea in order to capture bases on the Liaodong Peninsula to prevent Chinese forces from interfering with the drive on Beijing 31 The First Army with two divisions was activated on September 1 In mid September 17 the Chinese forces defeated at Pyongyang and occupied the city as the remaining Chinese troops retreated northward The navy s stunning victory in the Yalu on September 17 was crucial to the Japanese as it allowed the Second Army with three divisions and one brigade to land unopposed on the Liaodong Peninsula about 100 miles north of Port Arthur which controlled the entry to the Bohai Gulf in mid October 31 While the First Army pursued the remaining Chinese forces from Korea across the Yalu River Second Army occupied the city of Dairen on November 8 and then seized the fortress and harbor at Port Arthur on November 25 Farther north the First army s offensive stalled and was beset by supply problems and winter weather 31 Type 30 rifle was the standard infantry rifle of the Imperial Japanese Army from 1897 to 1905 Boxer Rebellion Edit Main article Boxer Rebellion In 1899 1900 Boxer attacks against foreigners in China intensified resulting in the siege of the diplomatic legations in Beijing An international force consisting of British French Russian German Italian Austro Hungarian American and Japanese troops was eventually assembled to relieve the legations The Japanese provided the largest contingent of troops 20 840 as well as 18 warships A small hastily assembled vanguard force of about 2 000 troops under the command of British Admiral Edward Seymour departed by rail from Tianjin for the legations in early June 32 On June 12 mixed Boxer and Chinese regular army forces halted the advance some 30 miles from the capital The road bound and badly outnumbered allies withdrew to the vicinity of Tianjin having suffered more than 300 casualties 32 The army general staff in Tokyo became aware of the worsening conditions in China and had drafted ambitious contingency plans 33 but the government in light of the Triple Intervention refused to deploy large forces unless requested by the western powers 33 However three days later the general staff did dispatch a provisional force of 1 300 troops commanded by Major General Fukushima Yasumasa to northern China Fukushima was chosen because his ability to speak fluent English which enabled him to communicate with the British commander The force landed near Tianjin on July 5 33 On June 17 with tensions increasing naval Rikusentai from Japanese ships had joined British Russian and German sailors to seize the Dagu forts near Tianjin 33 Four days later the Qing court declared war on the foreign powers The British in light of the precarious situation were compelled to ask Japan for additional reinforcements as the Japanese had the only readily available forces in the region 33 Britain at the time was heavily engaged in the Boer War and consequently a large part of the British army was tied down in South Africa Deploying large numbers of troops from British garrisons in India would take too much time and weaken internal security there 33 Overriding personal doubts Foreign Minister Aoki Shuzō calculated that the advantages of participating in an allied coalition were too attractive to ignore Prime Minister Yamagata likewise concurred but others in the cabinet demanded that there be guarantees from the British in return for the risks and costs of a major deployment of Japanese troops 33 On July 6 the 5th Infantry Division was alerted for possible deployment to China but without a timetable being set Two days later on July 8 with more ground troops urgently needed to lift the siege of the foreign legations at Peking the British ambassador offered the Japanese government one million British pounds in exchange for Japanese participation 33 Shortly afterward advance units of the 5th Division departed for China bringing Japanese strength to 3 800 personnel of the then 17 000 allied force 33 The commander of the 5th Division Lt General Yamaguchi Motoomi had taken operational control from Fukushima A second stronger allied expeditionary army stormed Tianjin on July 14 and occupied the city 33 The allies then consolidated and awaited the remainder of the 5th Division and other coalition reinforcements In early August the expedition pushed towards the capital where on August 14 it lifted the Boxer siege By that time the 13 000 strong Japanese force was the largest single contingent making up about 40 percent of the approximately 33 000 strong allied expeditionary force 33 Japanese troops involved in the fighting had acquitted themselves well although a British military observer felt their aggressiveness densely packed formations and over willingness to attack cost them excessive casualties 34 For example during the Tianjin fighting the Japanese while comprising less than one quarter 3 800 of the total allied force of 17 000 suffered more than half of the casualties 400 out of 730 34 Similarly at Beijing the Japanese constituting slightly less than half of the assault force accounted for almost two thirds of the losses 280 of 453 34 Russo Japanese War Edit Main article Russo Japanese War This section needs expansion You can help by adding to it January 2019 Ōshima Ken ichi Minister of War during the period Japanese riflemen during the Russo Japanese War The Type 38 rifle was adopted by the Imperial Japanese Army in 1905 The Russo Japanese War 1904 1905 was the result of tensions between Russia and Japan grown largely out of rival imperialist ambitions toward Manchuria and Korea The Japanese army inflicted severe losses against the Russians however they were not able to deal a decisive blow to the Russian armies Over reliance on infantry led to large casualties among Japanese forces especially during the siege of Port Arthur citation needed World War I Edit Main articles Asian and Pacific theatre of World War I and Japan during World War I The Empire of Japan entered the war on the Entente side Although tentative plans were made to send an expeditionary force of between 100 000 and 500 000 men to France 35 ultimately the only action in which the Imperial Japanese Army was involved was the careful and well executed attack on the German concession of Qingdao in 1914 36 Inter war years Edit Siberian intervention Edit Main article Japanese intervention in Siberia Commanding Officers and Chiefs of Staff of the Allied Military Mission to Siberia Vladivostok during the Allied Intervention During 1917 18 Japan continued to extend its influence and privileges in China via the Nishihara Loans During the Siberian Intervention following the collapse of the Russian Empire after the Bolshevik Revolution the Imperial Japanese Army initially planned to send more than 70 000 troops to occupy Siberia as far west as Lake Baikal The army general staff came to view the Tsarist collapse as an opportunity to free Japan from any future threat from Russia by detaching Siberia and forming an independent buffer state 37 The plan was scaled back considerably due to opposition from the United States In July 1918 the U S President Woodrow Wilson asked the Japanese government to supply 7 000 troops as part of an international coalition of 24 000 troops to support the American Expeditionary Force Siberia 38 After a heated debate in the Diet the government of Prime Minister Terauchi Masatake agreed to send 12 000 troops but under the command of Japan rather than as part of an international coalition Japan and the United States sent forces to Siberia to bolster the armies of the White movement leader Admiral Aleksandr Kolchak against the Bolshevik Red Army Once the political decision had been reached the Imperial Japanese Army took over full control under Chief of Staff General Yui Mitsue and by November 1918 more than 70 000 38 Japanese troops had occupied all ports and major towns in the Russian Maritime Provinces and eastern Siberia In June 1920 the United States and its allied coalition partners withdrew from Vladivostok after the capture and execution of the White Army leader Admiral Kolchak by the Red Army However the Japanese decided to stay primarily due to fears of the spread of communism so close to Japan and Japanese controlled Korea The Japanese Army provided military support to the Japanese backed Provisional Priamurye Government based in Vladivostok against the Moscow backed Far Eastern Republic The continued Japanese presence concerned the United States which suspected that Japan had territorial designs on Siberia and the Russian Far East Subjected to intense diplomatic pressure by the United States and Great Britain and facing increasing domestic opposition due to the economic and human cost the administration of Prime Minister Katō Tomosaburō withdrew the Japanese forces in October 1922 39 Rise of militarism Edit In the 1920s the Imperial Japanese Army expanded rapidly and by 1927 had a force of 300 000 men Unlike western countries the Army enjoyed a great deal of independence from government Under the provisions of the Meiji Constitution the War Minister was held accountable only to the Emperor Hirohito himself and not to the elected civilian government In fact Japanese civilian administrations needed the support of the Army in order to survive The Army controlled the appointment of the War Minister and in 1936 a law was passed that stipulated that only an active duty general or lieutenant general could hold the post 40 As a result military spending as a proportion of the national budget rose disproportionately in the 1920s and 1930s and various factions within the military exerted disproportionate influence on Japanese foreign policy The Imperial Japanese Army was originally known simply as the Army rikugun but after 1928 as part of the Army s turn toward romantic nationalism and also in the service of its political ambitions it retitled itself the Imperial Army kōgun In 1923 the army consisted of 21 divisions but in accordance with the 1924 reform it was reduced to 17 divisions Two leaps in the development of the military industry 1906 1910 and 1931 1934 made it possible to re equip the armed forces Conflict with China Edit Main article Second Sino Japanese War IJA amphibious assault ship Shinshu Maru the world s first landing craft carrier ship to be designed as such In 1931 the Imperial Japanese Army had an overall strength of 198 880 officers and men organized into 17 divisions 41 The Manchurian incident as it became known in Japan was a pretended sabotage of a local Japanese owned railway an attack staged by Japan but blamed on Chinese dissidents Action by the military largely independent of the civilian leadership led to the invasion of Manchuria in 1931 and later to the Second Sino Japanese War in 1937 As war approached the Imperial Army s influence with the Emperor waned and the influence of the Imperial Japanese Navy increased 42 Nevertheless by 1938 the Army had been expanded to 34 divisions 43 Conflict with the Soviet Union Edit From 1932 to 1945 the Empire of Japan and the Soviet Union had a series of conflicts Japan had set its military sights on Soviet territory as a result of the Hokushin ron doctrine and the Japanese establishment of a puppet state in Manchuria brought the two countries into conflict The war lasted on and off with the last battles of the 1930s the Battle of Lake Khasan and the Battles of Khalkhin Gol ending in a decisive victory for the Soviets The conflicts stopped with the signing of the Soviet Japanese Neutrality Pact on April 13 1941 44 However later at the Yalta Conference Stalin agreed to declare war on Japan and on August 5 1945 the Soviet Union voided their neutrality agreement with Japan 45 World War II Edit Main article Imperial Japanese Army during the Pacific War Army uniforms between 1941 and 1945 US Army poster In 1941 the Imperial Japanese Army had 51 divisions 43 and various special purpose artillery cavalry anti aircraft and armored units with a total of 1 700 000 people At the beginning of the Second World War most of the Japanese Army 27 divisions was stationed in China A further 13 divisions defended the Mongolian border due to concerns about a possible attack by the Soviet Union 43 From 1942 soldiers were sent to Hong Kong 23rd Army the Philippines 14th Army Thailand 15th Army Burma 15th Army Dutch East Indies 16th Army and Malaya 25th Army 46 By 1945 there were 6 million soldiers in the Imperial Japanese Army Type 38 rifle Type 97 Chi Ha the most widely produced Japanese medium tank of World War II Type 99 light machine gun From 1943 Japanese troops suffered from a shortage of supplies especially food medicine munitions and armaments largely due to submarine interdiction of supplies and losses to Japanese shipping which was worsened by a longstanding rivalry with the Imperial Japanese Navy The lack of supplies caused large numbers of fighter aircraft to become unserviceable for lack of spare parts 47 and as many as two thirds of Japan s total military deaths to result from illness or starvation 48 IJA Japanese officers 1930s IJA Korean Volunteer army 1943 IJA Taiwanese soldier in Philippines during World War IISalary Edit Compared to respective armies in Europe or America soldiers in the Imperial Japanese Army received a rather meagre salary however the cost of living in Japan was also cheaper than in most Western nations The below table gives figures from December 1941 when one Japanese yen was worth approximately 0 23 49 Basic rates of pay 49 Rank Monthly salary yen Monthly salary USD General 550 126 50Lieutenant general 483 33 111 17Major general 416 66 95 83Colonel 310 370 71 30 85 10Lieutenant colonel 220 310 50 60 71 30Major 170 220 39 10 50 60Captain 122 155 28 06 35 65First lieutenant 85 94 16 19 55 21 66Warrant officer 80 110 18 40 25 30Second lieutenant 70 83 16 30Sergeant major 32 75 7 36 17 25Probation officer 25 40 5 75 9 20Sergeant 23 30 5 29 6 90Corporal 20 4 60Lance corporal 13 50 3 11Private first class 9 2 07For comparison in 1942 an American private was paid approximately 50 per month or 204 yen 50 meaning the lowest ranking soldier in the United States military was earning equivalent to the maximum salary of an Imperial Japanese major or the base salary of an Imperial Japanese lieutenant colonel and about 25 times as much as an Imperial Japanese soldier of the same rank While disproportionate salary ranges were not uncommon between militaries during World War II for example Australian enlistees could expect to receive roughly triple as much in pay as their counterparts fighting for the United Kingdom 51 by any standards despite being widely considered a first rate or professional fighting force men serving in the IJA were very poorly compensated 52 Complicating matters further was the fact that by 1942 most Japanese soldiers were paid using the Japanese military yen JMY an unbacked currency that could not be redeemed for the regular Japanese yen In territories under Japanese occupation the military yen or Japanese invasion money as it came to be known by the locals was the only legal tender in circulation The Japanese authorities seized or ordered surrendered all other bank notes in territories under their occupation and provided compensation at an exchange rate as they saw fit in the form of JMYs This had the effect of affording Japanese soldiers in many occupied territories a higher degree of return for their low pay than they otherwise would have received 53 However at the end of the war the Imperial Japanese ministry of finance cancelled all military bank notes rendering the military yen worthless 54 55 War crimes Edit Main article Japanese war crimes Indonesian child recruits being trained by Japanese officers as human shield 1945 Many thousands of Indonesian were taken away as forced labourers romusha for Japanese military projects including the Burma Siam and Saketi Bayah railways and suffered or died as a result of ill treatment and starvation Pictured is an internment camp in Jakarta c 1945 Throughout the Second Sino Japanese War and World War II the Imperial Japanese Army had shown immense brutality and engaged in numerous atrocities against civilians as well as prisoners of war with the Nanking Massacre being the most well known example 56 Other war crimes committed by the Imperial Japanese Army included rape and forced prostitution death marches using biological warfare against civilians and the execution of prisoners of war Such atrocities throughout the war caused many millions of deaths 57 Post World War II Edit Ground Self Defense Force Edit Main article Japan Ground Self Defense Force Article 9 of the Japanese Constitution renounced the right to use force as a means of resolving disputes 58 This was enacted by the Japanese in order to prevent militarism which had led to conflict However in 1947 the Public Security Force was formed later in 1954 in the early stages of the Cold War the Public Security Force formed the basis of the newly created Ground Self Defense Force 59 Although significantly smaller than the former Imperial Japanese Army and nominally for defensive purposes only this force constitutes the modern army of Japan Continued resistance Edit Main article Japanese holdout Separately some soldiers of the Imperial Japanese Army continued to fight on isolated Pacific islands until at least the 1970s with the last known Japanese soldier surrendering in 1974 Intelligence officer Hiroo Onoda who surrendered on Lubang Island in the Philippines in March 1974 and Teruo Nakamura who surrendered on the Indonesian island of Morotai in December 1974 appear to have been the last holdouts 60 61 62 63 Growth and organization of the IJA EditMain articles Organization of the Imperial Japanese Army and Ranks of the Imperial Japanese Army Disposition of the Imperial Japanese Army in Japan at the time of its capitulation 18 August 1945 1870 consisted of 12 000 men 1873 Seven divisions of c 36 000 men c 46 250 including reserves 1885 consisted of seven divisions including the Imperial Guard Division In the early 1900s the IJA consisted of 12 divisions the Imperial Guard Division and numerous other units These contained the following 380 000 active duty and 1st Reserve personnel former Class A and B 1 conscripts after two year active tour with 17 and 1 2 year commitment 50 000 Second line Reserve Same as above but former Class B 2 conscripts 220 000 National Army 1st National Army 37 to 40 year old men from end of 1st Reserve to 40 years old 2nd National Army untrained 20 year olds and over 40 year old trained reserves 4 250 000 men available for service and mobilization 1922 21 divisions and 308 000 men 1924 Post WWI reductions to 16 divisions and 250 800 men 1925 Reduction to 12 divisions 1934 army increased to 17 divisions 1936 250 000 active 1940 376 000 active with 2 million reserves in 31 divisions 2 divisions in Japan Imperial Guard plus one other 2 divisions in Korea 27 divisions in China and Manchuria In late 1941 460 000 active in 41 divisions 2 in Japan and Korea 12 in Manchuria 27 in China plus 59 brigade equivalents Independent brigades Independent Mixed Brigades Cavalry Brigades Amphibious Brigades Independent Mixed regiments Independent Regiments 1945 5 million active in 145 divisions includes three Imperial Guard plus numerous individual units with a large Volunteer Fighting Corps includes 650 000 Imperial Japanese Army Air Service Japan Defense Army in 1945 had 55 divisions 53 Infantry and two armor and 32 brigades 25 infantry and seven armor with 2 35 million men 2 25 million Army Labour Troops 1 3 million Navy Labour Troops 250 000 Special Garrison Force 20 000 Kempetai 64 Total military in August 1945 was 6 095 000 including 676 863 Army Air Service 65 Casualties EditOver the course of the Imperial Japanese Army s existence millions of its soldiers were either killed wounded or listed as missing in action Taiwan Expedition of 1874 543 12 killed in battle and 531 by disease First Sino Japanese War The IJA suffered 1 132 dead and 3 758 wounded Russo Japanese War The number of total Japanese dead in combat is put at around 47 000 with around 80 000 if disease is included World War I 1 455 Japanese were killed mostly at the Battle of Tsingtao World War II Deaths Between 2 120 000 and 2 190 000 Imperial Armed Forces dead including non combat deaths includes 1 760 955 killed in action KIA Breakdown by Theatre Army 1931 1945 1 569 661 China 435 600 KIA Against U S Forces 659 650 KIA Burma Campaign 163 000 KIA Australian Combat Zone 199 511 KIA French Indochina 7 900 KIA U S S R Manchuria 45 900 KIA Others Japan 58 100 KIA 66 Navy 473 800 KIA All Theatres 672 000 known civilian dead 810 000 missing in action and presumed dead 7 500 prisoners of warSee also EditArtillery of Japan Double Leaf Society Ethnic Taiwanese Imperial Japan Serviceman Imperial Japanese rations Imperial Way Faction or Kodo Ha Japanese army and diplomatic codes Japanese Army Railways and Shipping Section Japanese Army and Navy Strategies for South Seas areas 1942 Japanese holdouts stragglers who surrendered after 1945 Kokuryu kai The Black Dragon Society List of Bombs in use by Imperial Japanese Army List of Japanese military equipment of World War II List of Japanese Army military engineer vehicles of World War II List of Japanese government and military commanders of World War II List of Japanese Infantry divisions List of Radars in use by Imperial Japanese Army Military Medal of Honor Japan Nanshin ron or Strike South Group Ranks of the Imperial Japanese Army Rikugun Shikan Gakko Tosei Ha Uniforms of the Imperial Japanese ArmyNotes Edit Japanese 大日本帝国陸軍 Hepburn Dai Nippon Teikoku Rikugun Army of the Greater Japanese Empire 官軍 kangunReferences Edit Jansen 2002 p 60 Drea 2009 p 8 Jaundrill 2016 p 86 a b Jaundrill 2016 p 87 a b c Ravina 2004 p 154 a b c d e f g Drea 2009 p 10 a b Drea 2009 p 19 a b c Drea 2009 p 20 Jansen 2002 p 343 Jaundrill 2016 p 96 Hunter Chester David 2019 Mansoor Peter R Murray Williamson eds Imperial Japanese Army Culture 1918 1945 Duty Heavier than a Mountain Death Lighter than a Feather The Culture of Military Organizations Cambridge University Press pp 208 225 doi 10 1017 9781108622752 010 ISBN 9781108485739 S2CID 211662774 Jansen 2002 p 397 a b c d e f Drea 2009 p 29 a b c Jaundrill 2016 p 95 Drea 2003 p 76 Drea 2009 p 23 a b c d e f Drea 2009 p 24 a b Jaundrill 2016 p 107 Harries amp Harries 1994 pp 22 29 Harries amp Harries 1994 pp 20 24 Harries amp Harries 1994 p 363 Harries amp Harries 1994 p 28 a b c d Olender 2014 p 42 Olender 2014 p 43 a b c d e Olender 2014 p 44 Olender 2014 p 45 a b c Drea 2009 p 79 Drea 2009 p 80 Olender 2014 p 56 Drea 2009 pp 82 83 a b c d Drea 2009 p 83 a b Drea 2009 p 97 a b c d e f g h i j k Drea 2009 p 98 a b c Drea 2009 p 99 Harries amp Harries 1994 p 109 Harries amp Harries 1994 pp 110 111 Humphreys 1996 p 25 a b Harries amp Harries 1994 p 123 Harries amp Harries 1994 p 124 Harries amp Harries 1994 p 193 Kelman p 41 Harries amp Harries 1994 p 197 a b c Jowett 2002 p 7 Soviet Japanese Neutrality Pact April 13 1941 Avalon Project at Yale University Battlefield Manchuria The Forgotten Victory Battlefield documentary series 2001 98 minutes Jowett 2002 pp 15 16 21 Bergerund Eric Fire in the Sky Boulder CO Westview Press 2000 Gilmore 1998 p 150 a b US Army Field Manual 30 480 Handbook on Japanese Military Forces 1944 p 8 Here s how much US troops were paid in every American war Business Insider 7 March 2018 Retrieved 16 December 2020 Recruitment Anzac Voices Australian War Memorial 17 October 2019 Retrieved 16 December 2020 A Question for the Imperial Japanese Army HistoryNet com 4 January 2012 Retrieved 16 December 2020 Wong Hon Sum The Japanese Occupation of Malaya Singapore and its Currency Singapore 1996 ISBN 9810081901 Japan urged to cash military notes for H K holders Asian Economic News Published June 7 14 1999 Retrieved December 16 2020 Gregg Huff and Shinobu Majima December 2013 Financing Japan s World War II Occupation of Southeast Asia The Journal of Economic History Cambridge University Press pp 937 977 Harries amp Harries 1994 pp 475 476 Sterling and Peggy Seagrave Gold Warriors The Education Forum Harries amp Harries 1994 p 471 Harries amp Harries 1994 p 487 Kristof Nicholas D Shoichi Yokoi 82 Is Dead Japan Soldier Hid 27 Years The New York Times September 26 1997 The Last PCS for Lieutenant Onoda Pacific Stars and Stripes March 13 1974 p 6 Onoda Home It Was 30 Years on Duty Pacific Stars and Stripes March 14 1974 p 7 The Last Last Soldier Time web archive org February 1 2009 Archived from the original on February 1 2009 Retrieved July 21 2021 The Japanese Army 1931 1945 2 Osprey Men at Arms 369 Page 3 by Phillip Jowett Copyright 2002 03 04 05 ISBN 1841763543 pg 217 218 The Army Japan Year Book 1938 1939 Kenkyusha Press Foreign Association of Japan Tokyo Dispositions and deaths Australia Japan Research Project 1964 Retrieved 29 December 2017 Bibliography EditDrea Edward J 2009 Japan s Imperial Army Its Rise and Fall 1853 1945 Lawrence Kansas University Press of Kansas ISBN 9780803217089 Drea Edward J 2003 The Imperial Japanese Army 1868 1945 Origins Evolution Legacy War in the Modern World Since 1815 Routledge ISBN 0415251400 Gilmore Allison B 1998 You Can t Fight Tanks with Bayonets Psychological Warfare against the Japanese Army in the South West Pacific Lincoln Nebraska University of Nebraska Press ISBN 0803221673 Harries Meirion Harries Susie 1994 Soldiers of the Sun The Rise and Fall of the Imperial Japanese Army New York Random House ISBN 0679753036 Humphreys Leonard A 1996 The Way of the Heavenly Sword The Japanese Army in the 1920s Stanford University Press ISBN 0804723753 Jansen Marius B 2002 The Making of Modern Japan Harvard University Press ISBN 0674003349 Jaundrill Colin D 2016 Benjamin A Haynes ed Samurai to Soldier Remaking Military Service in Nineteenth Century Japan Melissa Haynes Cornell University Press ISBN 9781501706646 Jowett Philip 2002 The Japanese Army 1931 45 1 Botley Oxford Osprey Publishing ISBN 1841763535 Olender Piotr 2014 Sino Japanese Naval War 1894 1895 MMPBooks ISBN 9788363678302 Orbach Danny 2017 Curse on This Country The Rebellious Army of Imperial Japan Cornell University Press ISBN 978 1501708336 Ravina Mark 2004 The Last Samurai The Life and Battles of Saigō Takamori John Wiley amp Sons ISBN 0471089702 Further reading EditBarker A J 1979 Japanese Army Handbook 1939 1945 London Ian Allan 1979 Best Antony 2002 British intelligence and the Japanese challenge in Asia 1914 1941 Palgrave Macmillan 2002 Chen Peter Horii Tomitaro World War II Database Bix Herbert 2000 Hirohito and the Making of Modern Japan New York HarperCollinsPublishers Denfeld D Colt 1997 Hold the Marianas The Japanese Defense of the Mariana Islands White Mane Publishing Company 1997 Coox A D 1985 Nomonhan Japan against Russia 1939 Stanford UP 1985 Coox A D 1988 The Effectiveness of the Japanese Military Establishment in the Second World War in A R Millett and W Murray eds Military Effectiveness Volume III the Second World War Allen amp Unwin 1988 pp 1 44 Drea Edward J 1998 In the Service of the Emperor Essays on the Imperial Japanese Army University of Nebraska Press ISBN 0803217080 Ford Douglas 2008 The best equipped army in Asia US military intelligence and the Imperial Japanese Army before the Pacific War 1919 1941 International journal of intelligence and counterintelligence 21 1 2008 86 121 Ford Douglas 2009 Dismantling the Lesser Men and Supermen myths US intelligence on the imperial Japanese army after the fall of the Philippines winter 1942 to spring 1943 Intelligence and National Security 24 4 2009 542 573 online Fruhstuck Sabine 2007 Uneasy warriors Gender memory and popular culture in the Japanese army Univ of California Press 2007 Gruhl Werner 2010 Imperial Japan s World War Two 1931 1945 Transaction Publishers Hayashi Saburo Alvin D Coox 1959 Kogun The Japanese Army in the Pacific War Quantico VA The Marine Corps Association Kelman Richard Leo J Daugherty 2002 Fighting Techniques of a Japanese Infantryman in World War II Training Techniques and Weapons Zenith Imprint ISBN 0760311455 Kublin Hyman The Modern Army of Early Meiji Japan The Far Eastern Quarterly 9 1 1949 pp 20 41 Kuehn John T 2014 A Military History of Japan From the Age of the Samurai to the 21st Century ABC CLIO 2014 Norman E Herbert Soldier and Peasant in Japan The Origins of Conscription Pacific Affairs 16 1 1943 pp 47 64 Rottman Gordon L 2013 Japanese Army in World War II Conquest of the Pacific 1941 42 Bloomsbury Publishing 2013 Rottman Gordon L 2012 Japanese Infantryman 1937 45 Sword of the Empire Bloomsbury Publishing 2012 Sisemore Major James D 2015 The Russo Japanese War Lessons Not Learned Pickle Partners Publishing 2015 Storry Richard 1956 Fascism in Japan The Army Mutiny of February 1936 History Today Nov 1956 6 11 pp 717 726 Wood James B 2007 Japanese Military Strategy in the Pacific War Was Defeat Inevitable Rowman amp Littlefield Publishers 2007 Yenne Bill 2014 The Imperial Japanese Army The Invincible Years 1941 42 Bloomsbury Publishing 2014 Primary sources Edit United States War Department TM 30 480 Handbook On Japanese Military Forces 1942 1942 online 384pp highly detailed description of wartime IJA by U S Army Intelligence External links Edit Wikimedia Commons has media related to Imperial Japanese Army Overview of Imperial Japanese Army weapons and armaments in World War II Army of the Land of the Rising Sun 100 years ago Part 1 Leap from the Middle Ages into the XX century in Russian part 1 of 4 Japanese war posters The PBS program Victory in the Pacific Archived 2010 03 26 at the Wayback Machine Imperial Japanese Army 3rd Platoon reenactor s resource Archived 2012 01 28 at the Wayback Machine Retrieved from https en wikipedia org w index php title Imperial Japanese Army amp oldid 1136711491, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.