Carrancistas
Kingdom of Belgium Kingdom of Serbia France Russian Empire (until March 1918) British Empire Kingdom of Italy (from April 1915) 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 23x15px 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
Austro-Hungarian Empire German Empire (including German colonial forces) Ottoman Empire Kingdom of Bulgaria
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
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
West Ukrainian People's Republic White Movement
Bavarian Soviet Republic Spartacus League German Communist movements
Democratic Republic of Georgia
Ottoman Empire (1918 only) Russian SFSR (from April 1920) Turkish Revolutionaries (from April 1920)
Republic of Mountainous Armenia Nagorno-Karabakh rebels British Empire (1918 only) Centrocaspian Dictatorship (1918 only)
White Russia Latvia United Kingdom Ingria Ober Ost Finnish, Swedish and Danish volunteers
Commune of Estonia Latvian SSR
Estonia Poland United Kingdom France
Latvian SSR
India
Free State of Fiume
Ukrainian People's Republic
Ukrainian SSR
French Syria
Fengtian clique
23x15px Spain
Turkish revolutionaries
Poland
Jangalis
Colonel Pesian's forces supported by: Soviet Union
British Empire
Kuwait
Tribal supporters British Empire (from 1929)
23x15px Forces of Habibullah Ghazi
British Colonial Forces
Part of Chinese Civil War
Fatherland's Front
Supported by:
Communist Party of China United States (from 1941) British Empire (from 1941)
Manchukuo Mengjiang
Empire of Japan
Mongolia
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 23x15px 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
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)
French Indochina
British India Transjordan
Nazi Germany Kingdom of Italy
United Kingdom
UK
People's Republic of Poland