The Soviet Union enters the Second World…
1936 CE to 1947 CE
The Soviet Union enters the Second World War on September 17, 1939, with its invasion of Poland, in accordance with a secret protocol within the Molotov–Ribbentrop Pact with Nazi Germany.
The Soviet Union later invades Finland, and occupies and annexed the Baltic states, as well as parts of Romania.
On June 22, 1941, Germany invades the Soviet Union, opening the Eastern Front, the largest theater of the war.
Groups
Ukrainian Soviet Socialist Republic
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Finland, Republic of
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Poland, Second Republic of
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Lithuania
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Latvia
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Estonia, independent republic of
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Romania, Kingdom of Greater
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Byelorussian Soviet Socialist Republic
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Union of Soviet Socialist Republics (USSR), or Soviet Union
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Germany, Third Reich
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Finnish Democratic Republic
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Lithuanian Soviet Socialist Republic
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Estonian Soviet Socialist Republic
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Latvian Soviet Socialist Republic
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Romanian People's Republic
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