Conflict
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Combatant 1
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Combatant 2
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Results
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Jōmon period
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East Expedition of Emperor Jimmu (c.7th century BCE)
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Kamu-yamato Iware-biko no mikoto's loyal warriors
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Troops led by local chiefdoms
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Kamu-yamato Iware-biko no mikoto Victory
- Kamu-yamato Iware-biko no-mikoto became first Emperor(Emperor Jimmu)
- Foundation of Japan
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Yayoi period
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Civil war of Wa (2nd century CE)
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unknown Yayoi chiefdoms
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unknown Yayoi chiefdoms
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Establishment of Yamatai state
- Consolidation of chiefdoms
- Himiko made queen
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Yamato period
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Expeditions of Empress Jingū (c.3rd century)
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Yamato
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Silla
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Victory
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Yamato-Goguryeo war (391-404)
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Yamato (Wa) Baekje Gaya
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Goguryeo Silla
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Defeat
- The Yamato troops retreated from the capital of Silla, but Ara Gaya captured the capital of Silla again
- The Yamato troops lost the battle against Goguryeo in Pyongyang (Gwanggaeto Stele)
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Jinshin War (675)
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Prince Ōama's loyal warriors
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Prince Ōtomo's loyal warriors
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Prince Ōama victory
- Death of Prince Ōtomo
- Emperor Tenmu (Prince Ōama) acceded to the throne.
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Nara period
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Thirty-Eight Years' War (770-811)
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Imperial Court
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Emishi
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Imperial victory
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Heian period
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Former Nine Years War (1051-1063)
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Imperial Court
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Abe clan
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Imperial victory
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Gosannen War (c. 1083-1089)
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Minamoto clan Northern Fujiwara clan
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Kiyohara clan
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Minamoto and Fujiwara victory
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Genpei War (1180-1185)
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Minamoto clan
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Taira clan
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Minamoto victory
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Kamakura period
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Jōkyū War (1221)
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Kamakura shogunate
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Retired Emperor Go-Toba's loyal warriors
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Kamakura victory
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Mongol invasions of Japan (1274 and 1281)
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Japan
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Mongol Empire
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Victory
- The Mongol Empire's invasions fail.
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Genkō War (1331–1333)
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Emperor Go-Daigo's loyal forces
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Kamakura shogunate
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Imperial victory
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Muromachi period
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Ōei Invasion (1419)
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Tsushima Province
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Joseon
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Victory
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Ōnin War (1467–1477)
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Hosokawa clan
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Ashikaga Shogunate Yamana clan
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Stalemate
- Weakening of the Ashikaga Shogunate
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Azuchi–Momoyama period
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Seven Year War (1592–1598)
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Japan
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Joseon Ming dynasty
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Defeat
- Tactical stalemate
- Withdrawal of Japanese armies; Strategic Joseon/Ming dynasty victory
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Edo period
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Invasion of Ryukyu (1609)
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Satsuma Domain
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Ryukyu Kingdom
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Satsuma victory
- Ryukyu Kingdom becomes a vassal state.
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Shimabara Rebellion (1637-1638)
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Tokugawa shogunate Dutch Empire
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Christian peasant and ronin rebels
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Tokugawa victory
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Bombardment of Kagoshima (1863)
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Satsuma Domain
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British Empire
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Stalemate
- Tactical stalemate and mitigated British victory
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Shimonoseki Campaign (1863–1864)
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Chōshū Domain
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British Empire Dutch Empire French Empire United States of America
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Defeat
- Chōshū pays an indemnity of $3,000,000.
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Summer War (1866)
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Chōshū Domain
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Tokugawa shogunate Aizu Domain
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Chōshū victory
- Weakening of the Tokugawa shogunate
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Meiji period
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Boshin War (1868–1869)
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Imperial Court
Tozama:
Other Tozama daimyo:
Empire of Japan
British Empire
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Tokugawa Shogunate
Aizu Domain
Ōuetsu Reppan Dōmei
- and others...
Takamatsu Domain
Tsuruoka Domain
Kuwana Domain
Matsuyama Domain
Ogaki Domain
Republic of Ezo
French Empire
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Imperial victory
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Southwestern War (1877)
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Empire of Japan
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Shizoku clans from Satsuma Domain
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Victory
- Shizoku rebellions were suppressed
- The conscription system was established in Japan
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First Sino-Japanese War (1894–1895)
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Empire of Japan
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Qing Dynasty
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Victory
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Japanese invasion of Taiwan (1895)
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Empire of Japan
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Republic of Formosa
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Victory
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Boxer Rebellion (1899–1901)
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Empire of Japan Russian Empire Britain French Republic United States of America German Empire Austro-Hungarian Empire (Austria-Hungary) Kingdom of Italy
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Qing dynasty
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Victory
- The rebellion was suppressed.
- Signing of the Boxer Protocol
- Provisions for foreign troops to be stationed in Beijing
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Russo-Japanese War (1904–1905)
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Empire of Japan
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Russian Empire Principality of Montenegro(Diplomatic)
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Victory
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Taishō period
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World War I (1914–1918)
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Empire of Japan French Republic Britain Russian Empire Kingdom of Italy United States of America Kingdom of Serbia Montenegro Republic of China Kingdom of Belgium Kingdom of Greece Kingdom of Romania Portuguese Republic
Siam Kingdom of Hejaz
Emirate of Nejd and Hasa
File:Flag of Asir.svg Idrisid Emirate of Asir
Nepal United States of Brazil
Transcaucasian Democratic Federative Republic
Democratic Republic of Armenia
Monaco
Cuba
Panama
Guatemala
Nicaragua
Costa Rica
Haiti
Honduras
Liberia
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German Empire
Austro-Hungarian Empire (Austria-Hungary) Ottoman Empire Kingdom of Bulgaria Dervish State Sultanate of Darfur
South African Republic
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Victory
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Siberian Intervention (1918–1922)
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Empire of Japan United States of America British Empire French Republic Kingdom of Italy Republic of Poland Republic of China Czechoslovak Republic Mongolia White movement
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Russian Soviet Federative Socialist Republic Far Eastern Republic Mongolian People's Party
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Withdrawal
- Bolsheviks regain Siberia
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Shōwa period
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Japanese invasion of Manchuria (1931–1932)
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Empire of Japan
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Republic of China
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Victory
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Second Sino-Japanese War (1937–1941)
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Empire of Japan
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Republic of China
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Merged into World War II
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Invasion of French Indochina (1940)
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Empire of Japan
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Vichy France
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Victory
- Japanese occupation of Northern French Indochina
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World War II (1941–1945)
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Empire of Japan German Reich Kingdom of Italy Kingdom of Thailand Republic of Finland Kingdom of Hungary Kingdom of Romania Kingdom of Bulgaria Slovak Republic (1939-1945) Independent State of Croatia Kingdom of Iraq
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Republic of China United States of America British Empire Union of Soviet Socialist Republics French Republic Viet Minh Republic of Poland Democratic Federal Yugoslavia Kingdom of Greece Kingdom of Denmark Kingdom of Norway Netherlands Kingdom of Belgium Grand Duchy of Luxembourg Czechoslovak Republic United States of Brazil United Mexican States Colombia Cuba Ethiopian Empire
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Defeat
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Operation Masterdom (1945–1946)
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Empire of Japan British Empire French Republic
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Viet Minh
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Withdrawal
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Heisei period
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Iraq War (2003–2011)
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Peshmerga
New Iraqi government
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Ba'athist Iraq
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Victory
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Operation Ocean Shield (2009–present)
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Japan Somalia NATO Australia China Colombia India Indonesia Malaysia New Zealand Oman Pakistan Puntland Russia Saudi Arabia Seychelles Singapore South Korea Ukraine
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Somali Pirates
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Ongoing
- NATO operations being conducted.
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