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Winter War

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The Winter War was a war between the Soviet Union and Finland that began with a Soviet invasion of Finland on 30 November 1939, three months after the outbreak of World War II, and ended three and a half months later with the Moscow Peace Treaty on 13 March 1940. Despite superior military strength, the Soviet Union suffered heavy losses against determined Finnish resistance before the treaty forced Finland to cede about nine percent of its territory, including the Karelian Isthmus and Ladoga Karelia, while retaining its sovereignty.

Facts
Start Year
1939 1
End Year
1940 1
Combatants
Finland, with foreign volunteers, against the Soviet Union and its puppet Finnish Democratic Republic 1
Outcome
Moscow Peace Treaty; Finland ceded about nine percent of its territory, including the Karelian Isthmus and Ladoga Karelia, but retained its sovereignty 1
Sources
1. Wikipedia: Winter War
Lead section, para 1
Quote, Lead section, para 1
The Winter War was a war between the Soviet Union and Finland. It began with a Soviet invasion of Finland on 30 November 1939, three months after the outbreak of World War II, and ended three and a half months later with the Moscow Peace Treaty on 13 March 1940.
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1. Wikipedia: Winter War
Infobox: Date
Quote, Infobox: Date
30 November 1939 - 13 March 1940
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1. Wikipedia: Winter War
Infobox: Belligerents
Quote, Infobox: Belligerents
Finland (with foreign volunteers) ... Soviet Union (with puppet Finnish Democratic Republic)
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1. Wikipedia: Winter War
Infobox: Result
Quote, Infobox: Result
Moscow Peace Treaty; Finland ceded approximately 9% of its territory to the Soviet Union, including the Karelian Isthmus, Ladoga Karelia, and other border regions. Finland retained sovereignty.
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