Imperial Japanese Army
Army · Japan
The Imperial Japanese Army (IJA) was the principal ground force of the Empire of Japan from 1871 to 1945. It played a central role in Japan's rapid modernization during the Meiji period and fought in the First Sino-Japanese War, the Russo-Japanese War, World War I, the Second Sino-Japanese War, and World War II, becoming a dominant force in Japanese politics. Initially formed from samurai domain armies that overthrew the Tokugawa Shogunate, it evolved into a powerful modern military influenced by French and German models. Notorious for committing widespread war crimes including mass murder, mass rape, and forced labour, it was dissolved after Japan's surrender in 1945; the Japan Ground Self-Defense Force succeeded it as Japan's ground warfare service.
Fought in Second Sino-Japanese War Wikipedia
Sub-units 93
- Division 24th Division (Imperial Japanese Army)
- Division 28th Division (Imperial Japanese Army)
- Division 109th Division (Imperial Japanese Army)
- Division 23rd Division (Imperial Japanese Army)
- Division 26th Division (Imperial Japanese Army)
- Division 105th Division (Imperial Japanese Army)
- Division 2nd Tank Division (Imperial Japanese Army)
- Division 16th Division (Imperial Japanese Army)
- Division 30th Division (Imperial Japanese Army)
- Division 8th Division (Imperial Japanese Army)
- Division 14th Division (Imperial Japanese Army)
- Division 3rd Tank Division (Imperial Japanese Army)
- Army Central District Army
- Army Air General Army
- Division 6th Division (Imperial Japanese Army)
- Division 106th Division (Imperial Japanese Army)
- Detachment Kawaguchi Detachment
- Brigade 65th Independent Mixed Brigade
- Brigade 56th Independent Mixed Brigade
- Division 34th Division (Imperial Japanese Army)
- Division 35th Division (Imperial Japanese Army)
- Division 36th Division (Imperial Japanese Army)
- Division 91st Division (Imperial Japanese Army)
- Division 104th Division (Imperial Japanese Army)
- Division 79th Division (Imperial Japanese Army)
- Division 107th Division (Imperial Japanese Army)
- Division 110th Division (Imperial Japanese Army)
- Division 112th Division (Imperial Japanese Army)
- Division 114th Division (Imperial Japanese Army)
- Division 115th Division (Imperial Japanese Army)
- Division 116th Division (Imperial Japanese Army)
- Division 119th Division (Imperial Japanese Army)
- Division 122nd Division (Imperial Japanese Army)
- Division 123rd Division (Imperial Japanese Army)
- Division 124th Division (Imperial Japanese Army)
- Division 125th Division (Imperial Japanese Army)
- Division 126th Division (Imperial Japanese Army)
- Division 127th Division (Imperial Japanese Army)
- Division 128th Division (Imperial Japanese Army)
- Division 131st Division (Imperial Japanese Army)
- Division 134th Division (Imperial Japanese Army)
- Division 135th Division (Imperial Japanese Army)
- Division 1st Tank Division (Imperial Japanese Army)
- Division 22nd Division (Imperial Japanese Army)
- Division 25th Division (Imperial Japanese Army)
- Division 27th Division (Imperial Japanese Army)
- Division 2nd Guards Division (Imperial Japanese Army)
- Division 32nd Division (Imperial Japanese Army)
- Division 3rd Guards Division (Imperial Japanese Army)
- Division 4th Tank Division (Imperial Japanese Army)
- Division 70th Division (Imperial Japanese Army)
- Division 71st Division (Imperial Japanese Army)
- Division 88th Division (Imperial Japanese Army)
- Army Second General Army (Japan)
- Army Fifth Army (Japan)
- Division 15th Division (Imperial Japanese Army)
- Division 13th Division (Imperial Japanese Army)
- Division 17th Division (Imperial Japanese Army)
- Division 19th Division (Imperial Japanese Army)
- Division 20th Division (Imperial Japanese Army)
- Army Sakhalin Province Expeditionary Army
- Army Eastern District Army
- Army Western District Army
- Army Central China Area Army
- Army Central China Expeditionary Army
- Army Mongolia Garrison Army
- Division 21st Division (Imperial Japanese Army)
- Air unit 1st Air Squadron (Japan)
- Army Twenty-First Army (Japan)
- Army Sixth Army (Japan)
- Army Northern District Army
- Division 29th Division (Imperial Japanese Army)
- Army General Defense Command
- Army Thirty-Seventh Army (Japan)
- Army First Area Army
- Army Eighth Area Army
- Division 6th Air Division (Japan)
- Division 7th Air Division (Japan)
- Army Burma Area Army
- Army Third Area Army
- Division 9th Air Division (Japan)
- Army Thirty-First Army (Japan)
- Army Fifth Area Army
- Army Twenty-Seventh Army (Japan)
- Army Seventh Area Army
- Army Forty-First Army (Japan)
- Division 100th Division (Imperial Japanese Army)
- Army Thirty-Fourth Army (Japan)
- Army Thirty-Fifth Army (Japan)
- Army Forty-Fourth Army (Japan)
- Army Seventeenth Area Army
- Army Fifty-Third Army (Japan)
- Army Thirtieth Army (Japan)
People who served 94
Ōyama Iwao
Gensui · 1868–present
Iwane Matsui
General · 1897–1938
Yoshijirō Umezu
General · 1903–1945
Yi U
Colonel · 1933–present
Lee Teng-hui
Second lieutenant · 1944–1945
Seiichi Kita
General
Isamu Chō
Lieutenant General
Kingorō Hashimoto
Colonel
Renya Mutaguchi
Lieutenant General
Kuroki Tamemoto
General
Tanaka Giichi
General
Emperor Taishō
Dai-gensui
Hideki Tojo
General
Katsura Tarō
General
Chiang Kai-shek
Generalissimo
Hisaichi Terauchi
General
Rikichi Andō
General of the Army
Tomoyuki Yamashita
General
Yamagata Aritomo
Field Marshal
Tadamichi Kuribayashi
Lieutenant General
Tomiichi Murayama
Officer Candidate
Saigō Takamori
Gensui
Kuniaki Koiso
General of the Army
Nobuyuki Abe
General
Hirohito
Tanzan Ishibashi
Sub-lieutenant
Senjūrō Hayashi
General
Nogi Maresuke
General
Masaharu Homma
Lieutenant General
Sadae Inoue
General
Takeichi Nishi
Colonel
Kōtoku Satō
Lieutenant General
Akira Mutō
Lieutenant General
Shizuo Yokoyama
Lieutenant General
Takaji Wachi
Lieutenant General
Seiichi Kuno
Lieutenant General
Prince Arisugawa Taruhito
General
Kunio Nakagawa
Lieutenant General
Asaka Yasuhiko
General
Sōsaku Suzuki
General
Heisuke Yanagawa
Lieutenant General
Seishirō Itagaki
General
Yasuji Okamura
General
Shunroku Hata
Gensui
Masakazu Kawabe
General
Heitarō Kimura
General
Kuroda Kiyotaka
Lieutenant General
Otozō Yamada
General of the Army
Kodama Gentarō
General
Doihara Kenji
General
Waichirō Sonobe
Lieutenant General
Oku Yasukata
Marshal
Prince Naruhisa Kitashirakawa
Colonel
Mitsuru Ushijima
Lieutenant General
Prince Nagahisa Kitashirakawa
Major
Takahito, Prince Mikasa
Major
Yoshitsugu Saitō
Lieutenant General
Morihiro Higashikuni
Major
Masaomi Yasuoka
Lieutenant General
Harukichi Hyakutake
General
Yasuhito, Prince Chichibu
Major General
Hideyoshi Obata
General
Shigeru Honjō
General
Kanji Ishiwara
Lieutenant General
Michitarō Komatsubara
Lieutenant General
Prince Tsuneyoshi Takeda
Podpolkovnik
Prince Tsunehisa Takeda
Major General
Jirō Tamon
Lieutenant General
Ōtori Keisuke
Hiromichi Yahara
Colonel
Hayao Tada
General
Ugaki Kazushige
General
Kiyonao Ichiki
Colonel
Yamaguchi Motomi
Keiji Suzuki
Major General
Yamanashi Hanzō
General
Ijichi Kōsuke
Lieutenant General
Takurō Matsui
Lieutenant General
Hatazō Adachi
Lieutenant General
Hitoshi Imamura
General
Takuma Nishimura
Lieutenant General
Tadayoshi Sano
Lieutenant General
Jun Ushiroku
General
Rensuke Isogai
General
Kan'in Kotohito
Generalfeldmarschall
Takashi Sakai
General
Kenkichi Ueda
General
Jirō Minami
General
Shōjirō Iida
Divisional General
Tatsumi Naofumi
Lieutenant General
Ōdera Yasuzumi
Major General
Kamio Mitsuomi
General
Shizuichi Tanaka
General
Hajime Sugiyama
General
Strength and losses
- 1945 Strength: 6,095,000
Movements
- January 27, 1868 – June 27, 1869 Boshin War
- May 1874 1874 Japanese expedition to Taiwan
- July 25, 1894 – April 17, 1895 First Sino-Japanese War
- May 29 – November 18, 1895 1895 Japanese invasion of Taiwan
- February 8, 1904 – September 5, 1905 Russo-Japanese War
- January 25–29, 1905 Battle of Sandepu
- February 20 – March 10, 1905 Battle of Mukden
- July 28, 1914 – November 11, 1918 World War I
- November 7, 1917 – June 16, 1923 Russian Civil War
- 1918 – 1922 Japanese intervention in Siberia
- August 1918 – July 1920 Siberian intervention
- May 11, 1928 Jinan incident
- September 18, 1931 – February 27, 1932 Japanese invasion of Manchuria
- January 1 – May 21, 1933 Defense of the Great Wall
- February 21 – March 1, 1933 Battle of Rehe
- April 1933 – December 1936 Actions in Inner Mongolia (1933–1936)
- August 1937 – November 1937 Tianjin–Pukou Railway Operation
- August 1937 – December 1937 Beiping–Hankou Railway Operation
- August 13 – November 26, 1937 Battle of Shanghai
- September 1 – November 9, 1937 Battle of Taiyuan
- December 1, 1937 – May 19, 1938 Battle of Xuzhou
- December 1–13, 1937 Battle of Nanking
- March 24 – April 7, 1938 Battle of Taierzhuang
- June 11 – October 27, 1938 Battle of Wuhan
- July 29 – August 11, 1938 Battle of Lake Khasan
- October 1938 – December 1938 Canton Operation
- October 11, 1938 Battle of Wanjialing
- May 9, 1939 Battle of Nanchang
- May 11 – September 16, 1939 Battles of Khalkhin Gol
- August 15, 1939 – August 15, 1945 Air raids on Japan
- September 1, 1939 – September 2, 1945 World War II
- September 17 – October 6, 1939 Battle of Changsha (1939)
- November 1939 – March 1940 1939–1940 Winter Offensive
- May 7–27, 1941 Battle of South Shanxi
- December 7, 1941 – May 10, 1942 Philippines campaign (1941–1942)
- December 7, 1941 – September 2, 1945 Pacific War
- December 8, 1941 Battle of Kota Bharu
- December 8, 1941 – January 31, 1942 Malayan campaign
- December 11–13, 1941 Battle of Jitra
- December 14, 1941 – September 13, 1945 Burma campaign
- 1942 Proposed Japanese invasion of Sichuan
- January 1942 – August 21, 1945 Solomon Islands campaign
- January 6–8, 1942 Battle of Slim River
- January 14, 1942 Battle of Gemas
- January 14–22, 1942 Battle of Muar
- January 15, 1942 Battle of Changsha (1941–1942)
- January 23, 1942 – August 1945 New Guinea campaign
- January 26–27, 1942 Battle off Endau
- February 8–15, 1942 Battle of Singapore
- February 10–12, 1942 Battle of Bukit Timah
- February 13–14, 1942 Battle of Pasir Panjang
- May 15 – September 6, 1942 Zhejiang-Jiangxi campaign
- September 12–14, 1942 Battle of Edson's Ridge
- December 15, 1942 – January 23, 1943 Battle of Mount Austen, the Galloping Horse, and the Sea Horse
- May 12 – June 3, 1943 Battle of West Hubei
- June 30, 1943 – March 20, 1944 Operation Cartwheel
- September 22 – October 24, 1943 Battle of Finschhafen
- September 22, 1943 – March 1, 1944 Huon Peninsula campaign
- November 2 – December 20, 1943 Battle of Changde
- December 15, 1943 – August 21, 1945 New Britain campaign
- December 26, 1943 – April 22, 1944 Battle of Cape Gloucester
- February 17–18, 1944 Operation Hailstone
- March 8 – July 3, 1944 Battle of Imphal
- March 9, 1944 Battle of Talasea
- April 17 – December 10, 1944 Operation Ichi-Go
- April 22, 1944 Landing at Aitape
- April 22, 1944 – August 15, 1945 Western New Guinea campaign
- May 27 – August 17, 1944 Battle of Biak
- May 27 – August 8, 1944 Battle of Changsha (1944)
- June 15 – July 9, 1944 Battle of Saipan
- June 22 – August 8, 1944 Battle of Hengyang
- July 10 – August 25, 1944 Battle of Driniumor River
- July 24 – August 1, 1944 Battle of Tinian
- July 30 – August 31, 1944 Battle of Sansapor
- August 10, 1944 Battle of Guam (1944)
- September 15 – October 22, 1944 Battle of Angaur
- September 15 – November 27, 1944 Battle of Peleliu
- September 15 – October 4, 1944 Battle of Morotai
- October 17 – December 31, 1944 Battle of Leyte
- October 20, 1944 – August 15, 1945 Philippines campaign (1944–1945)
- January 6–9, 1945 Invasion of Lingayen Gulf
- January 9 – August 15, 1945 Battle of Luzon
- February 3 – March 3, 1945 Battle of Manila (1945)
- February 19 – March 26, 1945 Battle of Iwo Jima
- February 21 – April 26, 1945 Battle of Baguio
- February 28 – April 22, 1945 Invasion of Palawan
- March 10 – August 15, 1945 Battle of Mindanao
- March 18 – July 30, 1945 Battle of Visayas
- March 21 – May 11, 1945 Battle of West Henan–North Hubei
- April 1 – June 22, 1945 Battle of Okinawa
- April 6 – June 22, 1945 Operation Kikusui
- May 1 – August 15, 1945 Borneo campaign
- June 10 – August 15, 1945 Battle of North Borneo
- August 9 – September 2, 1945 Harbin–Kirin Operation
- August 9 – September 3, 1945 Soviet–Japanese War
- August 9–20, 1945 Soviet invasion of Manchuria
- August 11–25, 1945 Soviet invasion of South Sakhalin
- August 16, 1945 Battle of Mutanchiang
- August 17, 1945 Seishin Operation
- August 18 – September 1, 1945 Soviet invasion of the Kuril Islands
- August 18–23, 1945 Battle of Shumshu
- August 28, 1945 Operation Jurist
- September 4–12, 1945 Operation Tiderace
- 1946 – 1949 Second Kuomintang-Communist Civil War
- 1946 Operation Downfall