Question

why and when did Germany attack Poland what are its consequences​

Answer 1

Answer:

The invasion of Poland

(September campaign, Polish: Kampania wrześniowa, 1939 defensive war, Polish: Wojna obronna 1939 roku, Poland campaign, German: Polenfeldzug), 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. 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.