(1939) History’s most destructive war dawns with a massive invasionIn WWII’s opening salvo, Hitler’s armed forces descend on Poland with blitzkrieg force and, getting assistance from the Soviet Union, will decimate the country’s archaic military, controlling the nation within a month. Per their Molotov-Ribbentrop Pact, Germany and the USSR will divide up the conquered territory.The Invasion of Poland, known in Poland as the September Campaign or the 1939 Defensive War, and in Germany as the Poland Campaign or Fall Weiss, was a joint invasion of Poland by Nazi Germany, the Soviet Union, the Free City of Danzig, and a small Slovak contingent, that 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, while the Soviet invasion commenced on 17 September following the Molotov-Tōgō agreement that terminated the Russian and Japanese hostilities in the east on 16 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.
Start date: Sep 01, 1939 End date: Oct 06, 1939 Planned and actual divisions of Poland, according to the Molotov-Ribbentrop Pact, with later adjustments