Category
page 11939 in the Soviet Union
Winter War
1939–1940 war between the Soviet Union and Finland
Soviet invasion of Poland
large-scale military attack performed by the USSR on the Second Polish Republic year 1939
Battles of Khalkhin Gol
1939 Soviet–Japanese battle in Mongolia
German–Soviet Treaty of Friendship, Cooperation and Demarcation
1939 treaty signed by Nazi Germany and the Soviet Union
Shelling of Mainila
military incident staged by the Soviet Union used to justify the Winter War

Kurapaty
thumb|Kurapaty forest graves
Soviet Union in World War II
involvement of the Soviet Union in World War II
German–Soviet military parade in Brest-Litovsk
Soviet occupation of the Baltic states
Soviet–Lithuanian Mutual Assistance Treaty
1939 treaty allowing Soviet troops and military bases within Lithuania
Soviet–Estonian Mutual Assistance Treaty
1939 treaty allowing Soviet troops and military bases within Estonia
German–Soviet Credit Agreement
contract
Soviet–Latvian Mutual Assistance Treaty
1939 treaty allowing Soviet troops and military bases within Latvia
Stalin's alleged speech of 19 August 1939
alleged secret speech given by Stalin in 1939 to the Politburo, justifying war in Europe and collaboration with Nazi Germany

background of the Winter War
the period before the outbreak of the Winter War between Finland and the Soviet Union (1939–1940), which stretches from the Finnish Declaration of Independence in 1917 to the Soviet-Finnish negotiations in 1938–1939
1939 Soviet census
1939 census in the Soviet Union
Soviet annexation of Eastern Galicia and Volhynia
World War II event
Molotov–Ribbentrop Pact negotiations
outline of negotiations of Nazi-Soviet non-aggression pact
background of the occupation of the Baltic states
SS Indigirka
ship