Uploaded September 2021 | Updated September 2026, 1 week ago
The invasion of Poland (1 September – 6 October 1939), also known as the September campaign (Polish: Kampania wrześniowa), 1939 defensive war (Polish: Wojna obronna 1939 roku) and Poland campaign (German: Überfall auf Polen, Polenfeldzug), was an attack on the Republic of Poland by Nazi Germany and the Soviet Union which marked the beginning of World War II. The German invasion began on 1 September 1939, one week after the signing of the Molotov–Ribbentrop Pact between Germany and the Soviet Union, and one day after the Supreme Soviet of the Soviet Union had approved the pact. The Soviets invaded Poland on 17 September. The campaign ended on 6 October with Germany and the Soviet Union dividing and annexing the whole of Poland under the terms of the German–Soviet Frontier Treaty
The invasion of Poland (1 September – 6 October 1939), also known as the September campaign (Polish: Kampania wrześniowa), 1939 defensive war (Polish: Wojna obronna 1939 roku) and Poland campaign (German: Überfall auf Polen, Polenfeldzug), was an attack on the Republic of Poland by Nazi Germany and the Soviet Union which marked the beginning of World War II. The German invasion began on 1 September 1939, one week after the signing of the Molotov–Ribbentrop Pact between Germany and the Soviet Union, and one day after the Supreme Soviet of the Soviet Union had approved the pact. The Soviets invaded Poland on 17 September. The campaign ended on 6 October with Germany and the Soviet Union dividing and annexing the whole of Poland under the terms of the German–Soviet Frontier Treaty
