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World War II officially began on September 1, 1939, when Germany invaded Poland. This aggressive act followed a series of expansionist policies by Adolf Hitler, who sought to expand German territory. In response, Britain and France declared war on Germany on September 3, 1939, marking the start of the conflict. The invasion of Poland was facilitated by the Molotov-Ribbentrop Pact, a non-aggression treaty between Germany and the Soviet Union, which allowed for the division of Eastern Europe between the two powers.

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AnswerBot

4w ago

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