List of wars 1900–44

1900–1919

1900–1919

Start	Finish	Name of Conflict	Belligerents
			Victorious party (if applicable)	Defeated party (if applicable)
1900	1900	War of the Golden Stool	United Kingdom	Ashanti Empire
1900	1920	Somaliland Campaign	British Empire Ethiopian Empire Italian Empire	Dervish State
1901	1902	Anglo-Aro War	United Kingdom	Aro Confederacy
1901	1936	Holy Man's Rebellion	French Indochina Siam	Phu Mi Bun Movement
1902	1903	Bailundo Revolt of 1902	Portuguese Empire	Ovimbundu Kingdoms Kisanji Luimbi
1902	1903	Venezuelan crisis of 1902–03	Venezuela	German Empire United Kingdom Kingdom of Italy
1903	1903	May Coup (Serbia)	Kingdom of Serbia	House of Karađorđević
1903	1903	Ilinden–Preobrazhenie Uprising	Ottoman Empire	Internal Macedonian Revolutionary Organization
1903	1904	British expedition to Tibet	United Kingdom	Tibet
1903	1907	Saudi–Rashidi War	Emirate of Nejd and Hasa	Emirate of Ha'il
1904	1908	Herero Wars	German Empire	Herero and Namaqua peoples
1904	1905	Russo-Japanese War	Empire of Japan	Russian Empire Principality of Montenegro
1904	1908	Macedonian Struggle	Hellenic Macedonian Committee	Internal Macedonian Revolutionary Organization
1905	1905	Argentine Revolution of 1905	Argentina	Radical Civic Union
1905	1905	Shoubak Revolt	Ottoman Empire	Shoubakis
1905	1905	Łódź insurrection (1905)	Russian Empire	Polish worker militias
1905	1906	1905 Tibetan Rebellion	Qing dynasty	Tibetan Buddhists
1905	1907	Revolution of 1905	Russian Empire	Revolutionaries
1905	1907	Maji Maji Rebellion	German Empire	Indigenous rebels
1906	1906	Dutch intervention in Bali (1906)	The Netherlands	Badung Tabanan Klungkung
1906	1906	Bambatha Rebellion	British Empire	Zulu
1906	1908	Theriso revolt	Ottoman Empire	Cretan rebels
1907	1907	1907 Romanian Peasants' Revolt	Kingdom of Romania	Romanian peasants
1907	1907	Honduran-Nicaraguan War	Nicaragua	Honduras
1908	1908	Young Turk Revolution	Young Turks	Ottoman Empire
1908	1908	Dutch intervention in Bali (1908)	The Netherlands	Karangasem Klungkung Gelgel
1908	1908	Dutch–Venezuelan crisis of 1908	The Netherlands	Venezuela
1909	1909	De Zeven Provinciën Mutiny	The Netherlands	Dutch Navy rebels
1909	1910	Second Melillan campaign	Spain	Riffian people
1909	1910	Hauran Druze Rebellion	Ottoman Empire	Druze Rebels
1909	1911	Ouaddai War	France	Ouaddai Empire
1910	1910	Karak Revolt	Ottoman Empire	Karakis
1910	1910	Albanian Revolt of 1910	Ottoman Empire	Albanian rebels
1910	1910	5 October 1910 revolution	Portuguese Republican Party	Kingdom of Portugal
1910	1910	Chinese expedition to Tibet (1910)	Qing Empire of China	Tibet
1910	1910	Portuguese Monarchist Civil War	Portuguese Republican Party	Kingdom of Portugal
1910	1911	Sokehs Rebellion	German Empire	Soheks rebels
1910	1920	Mexican Revolution	Maderistas Orozquistas Villistas Zapatistas Carrancistas Magonistas Seditionistas	Mexico
1910	1919	Border War (1910–19) Part of the Mexican Revolution	Constitutionalistas United States Maderistas	Villistas
1910	1915	Bandit War Part of the Mexican Revolution	Texas Rangers	Seditionistas Carrancistas
1911	1911	Albanian Revolt of 1911	Ottoman Empire	Albanian Malësorë (highlanders) and Catholic tribes from Scutari Vilayet
1911	1911	Second Guangzhou Uprising	Qing Empire of China	Anti Qing rebels
1911	1912	Dominican Civil War (1911–12)	Dominican Republic	Dominican Army conspirators
1911	1912	French conquest of Morocco	France	Morocco
1911	1912	Italo-Turkish War	Kingdom of Italy	Ottoman Empire
1911	1912	Xinhai Revolution 1911 Revolution	Tongmenghui	Qing Empire of China
1912	1915	Sino-Mongolian War	Mongolia	Republic of China
1912	1913	First Balkan War	Kingdom of Bulgaria Kingdom of Greece Kingdom of Serbia Kingdom of Montenegro	Ottoman Empire
1912	1912	Albanian Revolt of 1912	Albanian rebels	Ottoman Empire
1912	1916	Contestado War	Brazilian Governists	Rebels
1912	1933	United States occupation of Nicaragua Part of the Banana Wars	United States	Nicaraguan rebels
1912	1912	Royalist attack on Chaves	Portuguese First Republic	Portuguese Royalists
1912	1912	Negro Rebellion Part of the Banana Wars	Cuba United States	Independent Party of Color
1913	1913	Second Balkan War	Ottoman Empire Kingdom of Greece Kingdom of Serbia Kingdom of Montenegro Kingdom of Romania	Kingdom of Bulgaria
1913	1913	Tikveš Uprising Part of the Second Balkan War	Kingdom of Serbia	Internal Macedonian Revolutionary Organization
1913	1913	Ohrid–Debar Uprising	Kingdom of Serbia	Internal Macedonian Revolutionary Organization
1913	1913	Second Revolution	Beiyang Government	Sun Yat-sen southern China provinces
1914	1921	Zaian War	France	Zaian Confederation
1914	1918	World War I	Allies: Kingdom of Belgium Kingdom of Serbia France Russian Empire (until March 1918) British Empire Kingdom of Italy (from April 1915) India Canada Dominion of Newfoundland Australia New Zealand United States (from 1917) Kingdom of Montenegro Empire of Japan Portuguese Republic (from March 1916) Kingdom of Romania (August 1916 – May 1918) Kingdom of Greece (from June 1917) Albania Brazil (from October 1917) Armenia (from May 1918) Czechoslovakia Kingdom of Siam San Marino (from June 1915) Republic of China (from August 1917) Union of South Africa	Central Powers: Austro-Hungarian Empire German Empire (including German colonial forces) Ottoman Empire Kingdom of Bulgaria
1914	1914	United States occupation of Veracruz Part of the Banana Wars	United States	Mexico
1914	1915	Maritz Rebellion	Union of South Africa	"Bitterenders"
1915	1915	Chilembwe uprising	British Empire	Nyasland rebels
1915	1915	Bussa rebellion	British Empire	Bussa warriors
1915	1915	1915 Singapore Mutiny	British Empire	5th Native Light Infantry sepoys
1915	1916	Volta-Bani War	France	Tribal insurgents
1915	1916	National Protection War Anti-Monarchy War	Republic of China	Empire of China
1915	1917	Senussi Campaign Part of World War I	British Empire	Senussi Ottoman Empire Darfur Emirate
1915	1934	United States occupation of Haiti Part of the Banana Wars	United States	Haiti
1916	1917	Kaocen Revolt	France	Tuareg guerrillas
1916	1916	1916 Cochinchina uprising	France	Cochinchina rebels
1916	1916	Battle of Segale	Regents of Ethiopia	Lij Iyasu Loaylists
1916	1916	Noemvriana	Kingdom of Greece	United Kingdom France
1916	1916	Easter Rising	British Army Dublin Metropolitan Police Royal Irish Constabulary	Irish Republican Brotherhood Irish Volunteers Irish Citizen Army Cumann na mBan Hibernian Rifles Fianna Éireann
1916	1924	United States occupation of the Dominican Republic (1916–24) Part of the Banana Wars	United States	Dominican rebels
1916	1918	Arab Revolt Part of World War I	Hashemite Arabs United Kingdom Sultanate of Nejd (Unification of Saudi Arabia)	Ottoman Empire
1917	1917	February Revolution	Russian revolutionaries	Russian Empire
1917	1917	July Days	Russian Provisional Government	Bolshevik Party
1917	1917	Manchu Restoration	Republic of China	Monarchist Rebels
1917	1917	Thái Nguyên uprising	French colonial empire	Vietnamese rebels
1917	1917	Polubotkivtsi Uprising	Russian Provisional Government	Ukrainian Separatists
1917	1917	Toplica insurrection	Kingdom of Bulgaria	Chetniks
1917	1917	Kornilov Affair	Russian Provisional Government	Soldiers under Lavr Kornilov
1917	1917	Green Corn Rebellion	United States	Anti draft rebels
1917	1917	October Revolution Part of Russian Civil War	Bolsheviks	Russian Provisional Government
1917	1917	Kerensky–Krasnov uprising Part of Russian Civil War	Russian SFSR	Rebels under Alexander Kerensky
1917	1922	Russian Civil War	Victorious in Russia, Ukraine, Georgia, Armenia, Azerbaijan, Kazakhstan, and Mongolia: Russian SFSR Other Soviet republics Mongolian People's Party Victorious in their respective countries: Kingdom of Finland Republic of Estonia Republic of Latvia Republic of Lithuania Second Polish Republic	White Movement Central Powers (until 1918): Austro-Hungarian Empire German Empire (including German colonial forces) Ottoman Empire Allied Forces (from 1918): Czechoslovakia Republic of China France Kingdom of Greece Kingdom of Italy Empire of Japan Poland Kingdom of Romania Kingdom of Serbia United Kingdom Australia Canada United States Other combatants: Revolutionary Insurrectionary Army of Ukraine Ukrainian People's Republic Democratic Republic of Georgia Democratic Republic of Armenia Various pro-independence movements
1917	1918	Soviet-Turkish War (1917-1918) Part of Russian Civil War	Ottoman Empire	Russian SFSR
1917	1922	Constitutional Protection Movement	Beiyang Government	Guangzhou Military Government
1917	1921	Ukrainian War of Independence Part of World War I and Russian Civil War	Ukrainian SSR Russian SFSR	Ukrainian People's Republic West Ukrainian People's Republic White Movement
1917	1949	Ngolok rebellions (1917–49)	Republic of China	Ngolok Tribesmen
1918	1918	Adubi War	British Empire	Egba rebels
1918	1918	Judenburg mutiny Part of World War I	Austria-Hungary	17th Infantry Regiment
1918	1918	Cattaro Mutiny Part of World War I	Austria-Hungary	Elements of the Austo-Hungarian Navy
1918	1918	Aster Revolution Part of World War I	Hungarian National Council	Austria-Hungary
1918	1918	Radomir Rebellion Part of World War I	Kingdom of Bulgaria	Bulgarian Agrarian National Union
1918	1918	Left SR uprising Part of the Russian Civil War	Russian SFSR	Left Socialist Revolutionary Party
1918	1918	Finnish Civil War	Finnish White Guards German Empire	Finnish Red Guards Russian SFSR
1918	1918	Georgian–Armenian War	First Republic of Armenia	Democratic Republic of Georgia
1918	1918	Viena expedition	Russian SFSR Finnish Red Guards United Kingdom	Finnish White Guards Finnish Jäger troops
1918	1918	First Pechenga expedition	United Kingdom Russian SFSR Finnish Red Guards	Finnish volunteers
1918	1919	Austro-Slovene conflict in Carinthia	State of Slovenes, Croats and Serbs Kingdom of Yugoslavia	Republic of German-Austria
1918	1919	German Revolution of 1918–19	Weimar Republic	Communist Forces: Bavarian Soviet Republic Spartacus League German Communist movements
1918	1919	Greater Poland Uprising (1918–19)	Poland	German Empire
1918	1919	Polish–Ukrainian War Part of the Ukrainian War of Independence	Poland	West Ukrainian People's Republic
1918	1920	Georgian–Ossetian conflict (1918–20) Part of the Russian Civil War	Transcaucasian Democratic Federative Republic Democratic Republic of Georgia	Pro-Bolshevik Ossetian rebels
1918	1919	Sochi conflict Part of the Russian Civil War	White movement   Kuban-Black Sea Soviet Republic	Democratic Republic of Georgia
1918	1920	Armenian–Azerbaijani War Part of the Russian Civil War	First Republic of Armenia Republic of Mountainous Armenia Nagorno-Karabakh rebels British Empire (1918 only) Centrocaspian Dictatorship (1918 only)	Azerbaijan Democratic Republic Ottoman Empire (1918 only) Russian SFSR (from April 1920) Turkish Revolutionaries (from April 1920)
1918	1920	Estonian War of Independence Part of the Russian Civil War	Estonia White Russia Latvia United Kingdom Ingria Ober Ost Finnish, Swedish and Danish volunteers	Russian SFSR Commune of Estonia Latvian SSR
1918	1920	Latvian War of Independence Part of the Russian Civil War	Latvia Estonia Poland United Kingdom France	Russian SFSR Latvian SSR
1918	1919	Lithuanian–Soviet War Part of the Lithuanian Wars of Independence	Lithuania Saxon volunteers	Russian Soviet Federative Socialist Republic Lithuanian-Belorussian Soviet Socialist Republic
1918	1919	Al-Khurma dispute Part of the Unification of Saudi Arabia	Emirate of Riyadh	Kingdom of Hejaz
1918	1921	War of the Insane	French Indochina	Hmong rebels
1918	1920	Revolt of the Ingrian Finns	Russian SFSR	Ingrian Finns Finnish volunteers
1919	1919	Lithuanian War of Independence (War against the Bermontians) Part of the Lithuanian Wars of Independence	Lithuania	West Russian Volunteer Army
1919	1919	Sejny Uprising	Polish Military Organization (PMO) 41st Infantry Regiment	Lithuanian Sejny Command 1st Reserve Battalion
1919	1919	Polish–Czechoslovak War	Czechoslovakia	Second Polish Republic
1919	1919	Khotin Uprising	Romania	Ukrainian rebels
1919	1919	Hungarian–Romanian war of 1919	Romania	Hungarian Soviet Republic
1919	1922 (Armistice) 1923 (Treaty)	Turkish War of Independence	Grand National Assembly Russian SFSR	Greece Armenia
1919	1919	Third Anglo-Afghan War	Afghanistan	British Empire India
1919	1919	Christmas Uprising	Montenegrin Whites Kingdom of Yugoslavia	Montenegrin Greens Kingdom of Italy
1919	1920	Italo-Yugoslav War	Kingdom of Italy Free State of Fiume	Kingdom of Serbs, Croats and Slovenes
1919	1921	Polish–Soviet War	Republic of Poland Ukrainian People's Republic	Russian SFSR Ukrainian SSR
1919	1919	First Silesian Uprising Part of the Silesian Uprisings	Weimar Republic	Silesian Rebels
1919	1919	Aunus expedition	Russian SFSR Finnish Red Guards	Finnish White Guards Finnish Jäger troops
1919	1920	Alawite Revolt of 1919	France	Syrian insurgents
1919	1921	Irish War of Independence	Irish Republic	United Kingdom
1919	1920	Kuwait–Najd War	Kuwait British Empire	Ikhwan Bedouins
1919	1922	Greco-Turkish War (1919–22) Part of the Turkish War of Independence	Turkish Revolutionaries	Kingdom of Greece

1920–1929

1920–1929

Start	Finish	Name of Conflict	Belligerents
			Victorious party (if applicable)	Defeated party (if applicable)
1920	1920	Franco-Syrian War	France French Syria	Syrian Rebels
1920	1920	Husino rebellion	Kingdom of Serbs, Croats and Slovenes	Bosnian miners
1920	1920	Vlora War	Principality of Albania	Kingdom of Italy
1920	1920	1920 Jabal al-Gharbi civil war	Tribal fighters	Tribal fighters
1920	1920	Polish–Lithuanian War Part of the Lithuanian Wars of Independence	Poland	Lithuania
1920	1920	Kapp Putsch	Weimar Republic	Far right Freikorps
1920	1920	Ruhr Uprising	Weimar Republic Freikorps	Red Ruhr Army
1920	1920	Second Silesian Uprising Part of the Silesian Uprisings	Weimar Republic	German civil government and police of Upper Silesia
1920	1920	Turkish–Armenian War Part of the Turkish War of Independence	Turkish Revolutionaries Russian SFSR	First Republic of Armenia
1920	1920	Zhili–Anhui War	Zhili clique Fengtian clique	Anhui clique
1920	1920	Second Pechenga expedition	United Kingdom Russian SFSR Finnish Red Guards	Finnish volunteers
1920	1921	Guangdong–Guangxi War	Old Guangxi clique	Chinese Revolutionary Party
1920	1921	Franco-Turkish War Part of the Turkish War of Independence	Turkey	France French Armenian Legion
1920	1926	Rif War	France Spain	Rif Republic
1921	1921	Red Army invasion of Georgia Part of the Russian Civil War	Russian SFSR Turkish revolutionaries	Democratic Republic of Georgia
1921	1921	Kronstadt rebellion Part of the Russian Civil War	Russian SFSR	Anarchist Sailors
1921	1921	February Uprising Part of the Russian Civil War	Revolutionary committee (Revkom) of Armenia	Armenian Revolutionary Federation
1921	1921	Battle of Mountainous Armenia Part of the Russian Civil War	Armenia	Russian SFSR Turkey Azerbaijan SSR
1921	1921	Third Silesian Uprising Part of the Silesian Uprisings	Weimar Republic	Silesian Rebels Poland
1921	1921	Mongolian Revolution of 1921 Part of Russian Civil War	Mongolian Communists Russian SFSR	Bogd Khaanate White Guards
1921	1921	1921 Persian coup d'etat	Persian Cossack Brigade	Iranian Qajar police Jangalis Simko Kurdish rebels Colonel Pesian's forces supported by: Soviet Union
1921	1922	East Karelian Uprising and Soviet–Finnish conflict 1921–22	Russian SFSR	Finnish and East Karelian rebels
1921	1922	Rand Rebellion	Union of South Africa	Miners South African Communist Party Syndicalists
1921	1923	Kura Rebellion	United Kingdom Emir Abdullah	Sheikh Kulaib
1922	1922	First Zhili–Fengtian War	Zhili clique	Fengtian clique
1922	1922	11 September 1922 Revolution	Venizelist Rebels	Kingdom of Greece
1922	1923	Irish Civil War	Pro-treaty forces	Anti-treaty forces
1922	1923	Paraguayan Civil War (1922)	Gondrists	Schaererists
1922	1924	Sheikh Khazal rebellion	Sublime State of Persia	Sheikhdom of Mohammerah Bakhtiari Tribesmen
1922	1927	Tenente revolts	First Brazilian Republic	Tenentismo Brazilian Communist Party
1923	1923	Corfu incident	Kingdom of Italy	Kingdom of Greece
1923	1923	Leonardopoulos–Gargalidis coup d'état attempt	Kingdom of Greece	Monarchist Rebels
1923	1923	Adwan Rebellion	United Kingdom Emir Abdullah's forces Hashemite allied tribesmen	Sultan al-Adwan's forces
1923	1923	Klaipėda Revolt	Lithuania	French Third Republic
1923	1923	September Uprising	Bulgaria IMRO Shpitskomandi	Bulgarian Communist Party Bulgarian Agrarian National Union Anarchists
1924	1924	August Uprising	Soviet Union	Committee for Independence of Georgia
1924	1924	1924 Estonian coup d'état attempt	Estonia	Comintern
1924	1924	Tatarbunary uprising	Romania	Soviet Union
1924	1925	Saudi conquest of Hejaz	Sultanate of Nejd British Empire	Kingdom of Hejaz
1924	1924	Second Zhili–Fengtian War	Fengtian clique	Zhili clique
1925	1925	Incident at Petrich	Kingdom of Bulgaria	Kingdom of Greece
1925	1925	Sheikh Said rebellion	Turkey	Kurdish tribesmen
1925	1927	Great Syrian Revolt	France	Syrian rebels
1925	1926	Anti-Fengtian War	Fengtian clique Zhili clique (from February 1918)	Guominjun Zhili clique (until February 1918)
1926	1927	Nicaraguan civil war (1926-1927)	Nicaraguan Conservatives (government)	Nicaraguan Liberals (rebels)
1926	1928	Northern Expedition	Republic of China	Beiyang Government
1926	1929	Cristero War	Mexico	Cristeros
1927	1930	Ikhwan Revolt	Ibn Saud United Kingdom Kuwait	Ikhwan
1927	1950	Chinese Civil War	Communist Party of China After 1949: People's Republic of China	Nationalist Party of China Republic of China After 1949: Republic of China on Taiwan
1928	1929	Afghan Civil War	Barakzai dynasty Tribal supporters British Empire (from 1929)	Tribal rebels Forces of Habibullah Ghazi
1928	1931	Kongo-Wara rebellion	France	Gbaya rebels
1929	1929	Sino-Soviet conflict (1929)	Soviet Union	Republic of China
1929	1930	Women's War	Igbo Women of Owerri and Calabar Provinces	Warrant Chiefs British Colonial Forces

1930–1944

1930–1944

Start	Finish	Name of Conflict	Belligerents
			Victorious party (if applicable)	Defeated party (if applicable)
1930	1930	Yen Bai mutiny	French Indochina	VNQDD
1930	1930	Central Plains War Part of Chinese Civil War	Forces of Chiang Kai-shek	Forces of the coalition of Yan Xishan, Feng Yuxiang, Wang Jingwei, and Li Zongren
1930	1930	Gugsa Wale's Rebellion	Haile Selassie loyalists	Empress Zewditu supporters
1930	1931	Nghe-Tinh Revolt	French Indochina	Vietnamese rebels
1930	1932	Sino-Tibetan War	Republic of China	Tibet
1931	1931	March Incident	Empire of Japan	Sakurakai
1931	1931	October Incident	Empire of Japan	Sakurakai
1931	1931	Chilean naval mutiny of 1931	Chile	Chilean Navy rebels
1931	1932	Japanese invasion of Manchuria	Empire of Japan	Republic of China
1931	1932	Ahmed Barzani revolt	Kingdom of Iraq	Barzan tribe
1931	1934	Kumul Rebellion	Republic of China	First East Turkestan Republic
1932	1932	Constitutionalist Revolution	Brazil	São Paulo
1932	1932	Ecuadorian Civil War	Leftist and Liberal Rebels	Ecuador
1932	1932	January 28 Incident	Republic of China	Empire of Japan
1932	1932	May 15 Incident	Empire of Japan	League of Blood
1932	1932	1932 armed uprising in Mongolia	Mongolian People's Republic Soviet Union	Anti-communist rebels
1932	1932	Kirghiz rebellion	Republic of China	Kirghiz rebels
1932	1932	Mäntsälä rebellion	Finland	Lapua movement
1932	1932	1932 Salvadoran peasant uprising	El Salvador	Salvadoran peasants
1932	1933	Leticia Incident	Colombia	Peru
1932	1935	Chaco War	Paraguay	Bolivia
1933	1933	Boworadet Rebellion	Thailand	Rebels under Prince Boworadet
1933	1933	Anarchist uprising in Spain (1933)	Spanish Republic	Spanish Anarchists
1933	1933	Casas Viejas incident	Spanish Republic	Spanish Anarchists
1934	1934	Asturian Revolution	Spanish Republic	Asturian Miners
1934	1934	Soviet invasion of Xinjiang	Republic of China	Soviet Union White Russian forces Torgut Mongols
1934	1934	Military Academy incident	Empire of Japan	Imperial Way Faction
1934	1934	Austrian Civil War	First Austrian Republic Fatherland's Front	Social Democratic Party of Austria
1934	1934	1934 Khamba Rebellion	Tibet (1912–1951) Sichuan clique Communist Party of China	Khamba Tribesmen
1934	1934	Saudi–Yemeni War	Saudi Arabia	Yemen
1935	1935	1935 Yazidi revolt	Kingdom of Iraq	Yazidis
1935	1935	Goharshad Mosque rebellion	Iran	Bazaaris
1935	1935	1935 Greek coup d'état attempt	Second Hellenic Republic	Venizelist Rebels
1935	1936	1935–36 Iraqi Shia revolts	Kingdom of Iraq	Shia tribesmen
1935	1936	Second Italo-Ethiopian War	Kingdom of Italy	Ethiopian Empire
1936	1936	1936 Naval Revolt (Portugal)	Portugal	Revolutionary Armed Organization
1936	1936	February 26 Incident	Empire of Japan	Righteous Army
1936	1939	1936–39 Arab revolt in Palestine	United Kingdom British Army Palestine Police Force Jewish Settlement Police Jewish Supernumerary Police Haganah Special Night Squads FOSH Peulot Meyuhadot Irgun Peace Bands	Arab Higher Committee
1936	1939	Spanish Civil War	National faction Falange Carlists (1936–1937) CEDA (1936–1937) Alfonsists (1936–1937) Army of Africa Supported by: Italy Germany Portugal Foreign volunteers	Republican faction Spanish Republican Army Popular Front CNT/FAI UGT ERC Basque Army (1936–1937) Galicianist Party Supported by: International Brigades Soviet Union (1936–1938) Mexico France (1936)
1937	1937	Islamic rebellion in Xinjiang (1937)	Soviet Union White Russian forces	Republic of China
1937	1938	Dersim Rebellion	Turkey	Dersim tribes
1937	1945	Second Sino-Japanese War Part of World War II	Republic of China Communist Party of China United States (from 1941) British Empire (from 1941)	Empire of Japan Manchukuo Mengjiang
1938	1938	Battle of Lake Khasan	Soviet Union	Manchukuo Empire of Japan
1938	1938	1938 Greek coup d'état attempt	Second Hellenic Republic	Venizelist Rebels
1939	1939	Hungarian Invasion of the Carpatho-Ukraine	Kingdom of Hungary	Carpatho-Ukraine
1939	1939	Slovak–Hungarian War	Kingdom of Hungary	Slovak Republic
1939	1939	Italian invasion of Albania	Kingdom of Italy	Albanian Kingdom
1939	1939	Battle of Khalkhin Gol	Soviet Union Mongolia	Empire of Japan Manchukuo
1939	1945	World War II	Allied Powers: From 1939 Poland Australia France New Zealand British Empire South Africa Canada Czechoslovakia (government-in-exile) From 1940 Denmark Norway Belgium Luxembourg Netherlands Free France Kingdom of Greece Kingdom of Yugoslavia From 1941 Soviet Union Panama Costa Rica Dominican Republic El Salvador Haiti Honduras Nicaragua United States Republic of China Guatemala Cuba Philippines From 1942 Indian Empire Mexico Brazil Ethiopia From 1943 Iraq Bolivia Colombia Iran Yugoslavia From 1944 Liberia Peru Kingdom of Italy (since 1944. Formerly a member of the Axis) Kingdom of Romania (formerly a member of the Axis) Bulgaria (formerly a member of the Axis) San Marino (formerly a member of the Axis) Albania 1945 Only Ecuador Paraguay Uruguay Venezuela Turkey Egypt Lebanon Syria Saudi Arabia Argentina Chile	Axis Powers: Nazi Germany Kingdom of Italy (1940–1944) Hungary (from 1940) Empire of Japan (from 1941) Bulgaria (1940–1944) Independent State of Croatia (from 1941) Kingdom of Romania (1941–1944) Italian Social Republic (1943–1945) Slovakia Non-Axis Co-belligerents: Manchukuo Mengjiang China-Nanjing San Marino (1940–1943) Vichy France (1940–1944) Finland (1941–1944) Kingdom of Iraq (1941 only) Thailand (1942–1945)
1939	1940	Winter War Part of World War II	Soviet Union	Finland
1940	1940	Soviet occupation of Bessarabia and Northern Bukovina Part of World War II	Soviet Union	Romania
1940	1941	Franco-Thai War Part of World War II	Thailand	Vichy France French Indochina
1941	1941	Legionnaires' Rebellion	Kingdom of Romania	Iron Guard
1941	1941	Ecuadorian–Peruvian War	Peru	Ecuador
1941	1941	Anglo-Iraqi War Part of World War II	United Kingdom British India Transjordan	Kingdom of Iraq Nazi Germany Kingdom of Italy
1941	1944	Continuation War Part of World War II	Soviet Union United Kingdom	Finland Nazi Germany Kingdom of Italy
1941	1944	Hama Rashid revolt	Iran	Kurdish tribes
1942	1954	Hukbalahap Rebellion	Philippines United States	Hukbalahap Soviet Union Japan
1943	1943	Woyane rebellion	Ethiopian Empire UK	Woyanne rebels
1943	1944	Jesselton Revolt Part of World War II	Empire of Japan	Kinabalu Rebels
1943	1949	Ukrainian Insurgent Army insurgency	Soviet Union People's Republic of Poland	Ukrainian Insurgent Army
1944	1945	Lapland War Part of World War II	Finland	Nazi Germany
1944	1946	Ukrainian Insurgent Army	People's Republic of Poland	Cursed soldiers
1944	1947	Jewish insurgency in Palestine	Jewish Resistance Movement Haganah Irgun Lehi	British Army Royal Navy Royal Air Force Palestine Police Force
1944	1949	Ili Rebellion	Communist Party of China Second East Turkestan Republic Soviet Union White Russian forces Mongolian People's Republic	Republic of China National Revolutionary Army
1944	1951	Goryani Insurgency	People's Republic of Bulgaria	Goryani
1944	1953	Guerilla war in the Baltic states	Soviet Union	Forest Brothers