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Germany and the Soviet Union sign theNazi-Soviet Non-Aggression Pact
Germany and the Soviet Union sign the
Nazi-Soviet Non-Aggression Pact -
Germany invades Poland, starting World War II
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Britain and France declare war on Germany
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Germany invades the Soviet Union
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The Japanese launch a sneak attack on Pearl Harbor, Hawaii
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The United States drops the first atomic bomb on Hiroshima, Japan
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The United States drops a second atomic bomb on Nagasaki, Japan