List of wars involving Japan

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This is a list of wars involving Japan.

List[edit]

Conflict Combatant 1 Combatant 2 Results
Jōmon period
East Expedition of Emperor Jimmu
(c. 7th century BCE)
Kamu-yamato Iware-biko no mikoto's loyal warriors Troops led by local chiefdoms Kamu-yamato Iware-biko no mikoto victory
  • Kamu-yamato Iware-biko no-mikoto became first Emperor (Emperor Jimmu).
  • Foundation of Japan
Yayoi period
Civil war of Wa
(2nd century CE)
Unknown Yayoi chiefdoms Unknown Yayoi chiefdoms Establishment of Yamatai state
  • Consolidation of chiefdoms
  • Himiko made queen
Yamato period
Expeditions of Empress Jingū
(c. 3rd century)
Yamato Silla Victory
Goguryeo–Wa conflicts
(391–404)
Wa
Baekje
Gaya
Goguryeo
Silla
Defeat
  • The Wa troops retreated from the capital of Silla, but Ara Gaya captured the capital of Silla again.
  • The Wa troops lost the battle against Goguryeo in Pyongyang (Gwanggaeto Stele).
Mishihase War
(658–660)
Yamato State
Emishi
Mishihase Victory
  • Mishihase were possible recent settlers from Siberia.
  • Yamato and Emishi force defeated Mishihase. (Nihon Shoki)
  • Place uncertain, possibly Hokkaido
Baekje-Tang War
(660–663)
Yamato (Wa)
Baekje
Goguryeo
Tang
Silla
Defeat
Jinshin War
(675)
Prince Ōama's loyal warriors Prince Ōtomo's loyal warriors Prince Ōama victory
  • Death of Prince Ōtomo
  • Emperor Tenmu (Prince Ōama) acceded to the throne.
Nara period
Thirty-Eight Years' War
(770–811)
Imperial Court Emishi Imperial victory
Heian period
Former Nine Years' War
(1051–1063)
Imperial Court Abe clan Imperial victory
Gosannen War
(c. 1083–1089)
Sasa Rindo.svg Minamoto clan
Northern Fujiwara clan
Kiyohara clan Minamoto and Fujiwara victory
Genpei War
(1180–1185)
Sasa Rindo.svg Minamoto clan Ageha-cho.svg Taira clan Minamoto victory
Kamakura period
Jōkyū War
(1221)
Japanese Crest mitu Uroko.svg Kamakura shogunate Imperial Seal of Japan.svg Retired Emperor Go-Toba's loyal warriors Kamakura victory
  • Retired emperors exiled
Mongol invasions of Japan
(1274 and 1281)
Japan Mongol Empire Victory
  • The Mongol Empire's invasions fail.
Genkō War
(1331–1333)
Imperial Seal of Japan.svg Emperor Go-Daigo's loyal forces Japanese Crest mitu Uroko.svg Kamakura shogunate Imperial victory
Muromachi period
Ōei Invasion
(1419)
Ashikaga mon.svg Ashikaga shogunate Korea Victory
  • Korean withdrawal
Ōnin War
(1467–1477)
Mon Hosokawa.JPG Hosokawa clan Ashikaga mon.svg Ashikaga shogunate
五七桐に七葉根笹.png Yamana clan
Stalemate
  • Weakening of the Ashikaga shogunate
Azuchi–Momoyama period
Seven Year War
(1592–1598)
Japan Korea
China
Inconclusive
  • Tactical stalemate
  • Withdrawal of Japanese armies; strategic Korean/Chinese victory
Edo period
Invasion of Ryukyu
(1609)
Maru juji.svg Satsuma Domain  Ryūkyū Kingdom Satsuma victory
  • The Ryukyu Kingdom becomes a vassal state.
Shimabara Rebellion
(1637–1638)
Tokugawa family crest.svg Tokugawa shogunate
 Dutch Empire
Roman Catholics and rōnin rebels Tokugawa victory
Bombardment of Kagoshima
(1863)
Maru juji.svg Satsuma Domain  British Empire Stalemate
  • Tactical stalemate and mitigated British victory
Shimonoseki Campaign
(1863–1864)
Ichimonjimitsuboshi.svg Chōshū Domain  British Empire
 Dutch Empire
 France
 United States
Defeat
  • Chōshū pays an indemnity of $3,000,000.
Summer War
(1866)
Ichimonjimitsuboshi.svg Chōshū Domain Tokugawa family crest.svg Tokugawa shogunate
Japanese crest Aizu Aoi.svg Aizu Domain
Chōshū victory
  • Weakening of the Tokugawa shogunate
Meiji period
Boshin War
(1868–1869)
Imperial Court

Tozama:

Other Tozama daimyō:


 Japan


 United Kingdom

Tokugawa shogunate

Aizu Domain
Ōuetsu Reppan Dōmei

and others...

Takamatsu Domain
Tsuruoka Domain
Kuwana Domain
Matsuyama Domain
Ogaki Domain


Republic of Ezo


 France

Imperial victory
Japanese invasion of Taiwan (1874)
(1874)
 Japan Paiwan
 China
Victory
  • Occupation of Taiwan by Japan
Southwestern War
(1877)
 Japan Maru juji.svg Shizoku clans from Satsuma Domain Imperial victory
  • Shizoku rebellions were suppressed.
  • The conscription system was established in Japan.
First Sino-Japanese War
(1894–1895)
 Japan  China Victory
Japanese invasion of Taiwan
(1895)
 Japan Flag of Formosa 1895.svg Formosa Victory
Boxer Rebellion
(1899–1901)
 Japan
 Russia
 United Kingdom
 France
 United States
 Germany
 Austria-Hungary
 Italy
 China Victory
  • The rebellion was suppressed.
  • Signing of the Boxer Protocol
  • Provisions for foreign troops to be stationed in Beijing
Russo-Japanese War
(1904–1905)
 Japan  Russia Victory
Taishō period
Truku War
(1914)
 Japan Truku Tribe Victory
World War I
(1914–1918)
 Japan
 France
British Empire United Kingdom

 Russia
 Italy
 United States
 Serbia
 Montenegro
 Belgium
 Romania
 Portugal
Hejaz
Republic of China (1912–1949) China
 Greece
 Brazil

 Germany
 Austria-Hungary
 Ottoman Empire
 Bulgaria
Victory
Siberian Intervention
(1918–1922)
 Japan
White movement
 United States
 United Kingdom
 France
 Italy
 Poland
Republic of China (1912–1949) China
 Czechoslovakia
Mongolia
Flag of the Russian Soviet Federative Socialist Republic (1918–1937).svg Russia
 Far Eastern Republic
Mongolian People's Party
Withdrawal
  • Bolsheviks regain Siberia.
Shōwa period
Japanese invasion of Manchuria
(1931–1932)
 Japan  China Victory
Second Sino-Japanese War
(1937–1945)
 Japan

Flag of the Republic of China-Nanjing (Peace, Anti-Communism, National Construction).svg Reorganized National Government
 Manchukuo
 Mengjiang
Provisional Government
Reformed Government
East Hebei

 China

 United States
 Soviet Union
 British Empire

Defeat
Invasion of French Indochina
(1940)
 Japan  France Victory
  • Japanese occupation of Northern French Indochina
World War II
(1941–1945)
 Japan
 Germany
 Italy
 Romania
 Hungary
 Bulgaria
Slovakia
 Croatia
 Finland
 Thailand
 Iraq
 Soviet Union
 United States
 United Kingdom
 China
 France
Flag of Poland (1928–1980).svg Poland
 Yugoslavia
 Greece
 Netherlands
 Belgium
 Luxembourg
 Denmark
 Norway
 Czechoslovakia
 India
 Canada
 Australia
 New Zealand
 South Africa
 Philippines
 Ethiopia
 Brazil
 Mexico
 Mongolia
 Tuva
Defeat
Operation Masterdom
(1945–1946)
 Japan
 United Kingdom
France
Flag of North Vietnam (1945-1955).svg Viet Minh Victory
Heisei period
Battle of Amami-Ōshima
(2001)
 Japan  North Korea Victory
  • North Korean naval trawler sunk
Iraq War
(2003–2011)

Peshmerga


New Iraqi government




 Iraq

Victory
Operation Ocean Shield
(2009–2016)
 Japan
 Somalia
 NATO
 Australia
 China
 Colombia
 India
 Indonesia
 Malaysia
 New Zealand
 Oman
 Pakistan
 Puntland
 Russia
 Saudi Arabia
 Seychelles
 Singapore
 South Korea
 Ukraine
Somali pirates Victory
  • Number of Somali pirate attacks have been reduced dramatically.

See also[edit]