This is a list of wars involving Finland since its declaration of independence on 6 December 1917.
List Conflict Party 1 Party 2 Result Finnish leaders Finnish losses(dead or missing) Head of State Chief of Defence Finnish Civil War(1918) Finnish Whites victory German hegemony until November 1918 Division in Finnish society Collapse of the Finnish Reds Dissolution of the Finnish Socialist Workers' Republic Heimosodat(1918–1922) (Estonian War of Independence) (Viena expedition and Petsamo expeditions) Treaty of Tartu Finnish victory in Estonia and annexation of Petsamo Soviet victory in White Karelia, Aunus, Petrograd and East Karelia Winter War(1939–1940)Part of the European theatre of World War II Foreign volunteers Finnish Democratic Republic Moscow Peace Treaty Soviet conquest of Finland fails Cession of the Gulf of Finland islands, Karelian Isthmus, Ladoga Karelia, Salla, Rybachy Peninsula and lease of Hanko to the Soviet Union Continuation War(1941–1944)Part of the Eastern Front of World War II Naval support: Air support: Defeat Moscow Armistice Start of the Lapland War Petsamo ceded to the USSR Porkkala Peninsula leased to the USSR for 50 years Hanko retaken by Finland Lapland War(1944–1945)Part of the Second World War FinlandMinor air support: Soviet Union Germany Victory German retreat from Finnish territory
See also Military of the Grand Duchy of Finland Military history of Finland List of Finnish treaties Finland Guard Regiment
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