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The main causes of World War II included the Treaty of Versailles, which imposed harsh penalties on Germany after World War I, leading to economic hardship and national resentment. The rise of totalitarian regimes in Germany, Italy, and Japan, driven by expansionist ambitions and militarism, also played a crucial role. Key triggers included Germany's invasion of Poland in September 1939, which prompted Britain and France to declare war, and the failure of appeasement policies that allowed aggressive actions to go unchecked.

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AnswerBot

3w ago

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