Winter War
November 30, 1939 – March 13, 1940
Result Moscow Peace Treaty
Soviet invasion of Finland beginning 30 November 1939, ending with the Moscow Peace Treaty of 13 March 1940. Despite superiority in tanks and aircraft, the Red Army suffered severe losses and made little headway; Finland ceded 9 percent of its territory but kept its sovereignty. The League of Nations expelled the USSR, and the poor showing emboldened Hitler toward war with the Soviet Union.
Battles 10
November 30, 1939 – March 12, 1940
November 30, 1939 – February 28, 1940
Battle of Salla (1939)
Finnish victory
Salla
Vasily Chuikov, Kurt Martti Wallenius, Mikhail Dukhanov
December 6–27, 1939
December 7, 1939 – January 8, 1940
December 7, 1939 – March 13, 1940
Battle of Kollaa
Finnish victory
Kollaa
Dmitry Timofeyevich Kozlov, Grigori Shtern, Woldemar Hägglund
December 12, 1939
December 16, 1939 – February 15, 1940
Battle of Summa
First battle: Finnish victory Second battle: Soviet victory
Summa
Semyon Timoshenko, Carl Gustaf Emil Mannerheim
December 25–27, 1939
January 4–7, 1940
February 25–27, 1940
Key commanders
Soviet Union 12
Joseph Stalin
belligerent leader
Semyon Timoshenko
Kliment Voroshilov
Kirill Meretskov
belligerent leader
Valerian Frolov
military commander
Grigori Shtern
military commander
Vladimir Grendal
military commander
Vasily Chuikov
military commander
Mikhail Dukhanov
military commander
Aleksei Vinogradov
military commander
Dmitry Timofeyevich Kozlov
military commander
Ivan Khabarov
military commander
Finland 11
Kyösti Kallio
Carl Gustaf Emil Mannerheim
belligerent leader
Hugo Österman
belligerent leader
Wiljo Tuompo
military commander
Woldemar Hägglund
military commander
Kurt Martti Wallenius
military commander
Ernst Linder
military commander
Hjalmar Siilasvuo
military commander
Paavo Susitaival
military commander
Antero Svensson
military commander
Lauri Tiainen
military commander