Example image of eyePlorer eyePlorer map for 'Winter War': Finland Soviet Union Invasion of Poland (1939) Moscow Peace Treaty World War II League of Nations Tank Great Purge Red Army Officer (armed forces) Adolf Hitler Operation Barbarossa Lake Ladoga Saint Petersburg Sovereignty Franco-British plans for intervention in the Winter War Scandinavia Nazi Germany Swedish iron ore during World War II Sweden Autonomous area Buffer state Russian Empire Russification Russification of Finland Senate of Finland Finland's Declaration of Independence World War I Bolshevik Russian Civil War Finnish Civil War Military exercise Åland Islands Government of Sweden Classified information Estonia Finnish–Estonian defense cooperation Communist Party of Finland Lapua Movement Mäntsälä rebellion Parliament of Finland Patriotic People's Movement (Finland) Aunus expedition Viena expedition Carl Gustaf Emil Mannerheim General officer Russian Soviet Federative Socialist Republic Grand Duchy of Finland Treaty of Tartu (Russian–Finnish) Arctic Ocean