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World War II: The Soviet Union invaded Poland from the east, sixteen days after Nazi Germany's attack on the country from the west.
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World War II
1939–1945 global conflict
World War II or the Second World War was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks and aircraft played major roles,…Source: Wikipedia (CC BY-SA)
Soviet invasion of Poland
1939 invasion of the Second Polish Republic by the Soviet Union during World War II
The Soviet invasion of Poland was a military conflict by the Soviet Union without a formal declaration of war. On 17 September 1939, the Soviet Union invaded Poland from the east, 16 days after Nazi Germany invaded Poland from the west. Subsequent military operations lasted for…Source: Wikipedia (CC BY-SA)
Invasion of Poland
German, Soviet, and Slovak attack at the beginning of World War II
The invasion of Poland, also known as the September Campaign, Polish Campaign, and Polish Defensive War of 1939, was a joint attack on the Republic of Poland by Nazi Germany, the Slovak Republic, and the Soviet Union, which marked the beginning of World War II. The German…Source: Wikipedia (CC BY-SA)