Soviet invasion of Poland

When

17 Sep 1939 – 6 Oct 1939

Kind

Military operation

Coordinates

52.00° N, 23.80° E

Description

large-scale military attack performed by the USSR on the Second Polish Republic year 1939

Cause

Secret Additional Protocol to the Molotov–Ribbentrop Pact, Molotov–Ribbentrop Pact

1939 World War II invasion

The Soviet Union invaded Poland from the east, without a formal declaration of war, on 17 September 1939, 16 days after Nazi 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.

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• Wikidata: military operations, raids and air strikesWikidata contributorsCreative Commons CC0 1.0 (public domain dedication)Source page
• Wikipedia year pages (English), by Wikipedia contributorsWikipedia contributors · names it “The Soviet Union invades Poland, and then occupies eastern Polish territories”Creative Commons Attribution-ShareAlike 4.0Source page
• Wikipedia year pages (German), by Wikipedia contributorsWikipedia contributors · names it “Die Sowjetische Besetzung Ostpolens beginnt”Creative Commons Attribution-ShareAlike 4.0Source page
• Wikipedia year pages (French), by Wikipedia contributorsWikipedia contributors · names it “les troupes soviétiques envahissent l’est de la Pologne conformément aux clauses secrètes du Pacte germano-soviétique”Creative Commons Attribution-ShareAlike 4.0Source page
• Wikipedia year pages (Russian), by Wikipedia contributorsWikipedia contributors · names it “Начало польского похода РККА”Creative Commons Attribution-ShareAlike 4.0Source page
• Wikipedia year pages (Spanish), by Wikipedia contributorsWikipedia contributors · names it “Polonia: las tropas soviéticas invaden Polonia oriental (véase el Pacto Molotov-Ribbentrop)”Creative Commons Attribution-ShareAlike 4.0Source page