Soviet invasion of Poland

1939 invasion of the Second Polish Republic by the Soviet Union during World War II This article is about the invasion in 1939. For the Soviet invasion of Poland in 1920, see Polish–Soviet War.

Belligerents :Second Polish Republic

:Soviet Union

Supported by:
Nazi Germany

Slovakia

DanzigCommanders and leaders Strength 20,000 Border Protection Corps,
450,000 Polish Army. 600,000–800,000 troops
33+ divisions
11+ brigades
4,959 guns
4,736 tanks
3,300 aircraftCasualties and losses 3,000–7,000 killed or missing,
up to 20,000 wounded.
320,000–450,000 captured:85 1,475–3,000 killed or missing
2,383–10,000 wounded.

The Soviet invasion of Poland was a military operation by the Soviet Union without a formal declaration of war. On 17 September 1939, the Soviet Union invaded Poland from the east, sixteen days after Germany invaded Poland from the west. Subsequent military operations lasted for the following 20 days and ended on 6 October 1939 with the two-way division and annexation of the entire territory of the Second Polish Republic by Nazi Germany and the Soviet Union. This division is sometimes called the Fourth Partition of Poland. The Soviet (as well as German) invasion of Poland was indirectly indicated in the "secret protocol" of the Molotov–Ribbentrop Pact signed on 23 August 1939, which divided Poland into "spheres of influence" of the two powers and questioned the future existence of the Polish state. German and Soviet cooperation in the invasion of Poland has been described as ...read more

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