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Isolationism and Pearl Harbor USHC-7.1 Analyze the decision of the United States to enter World War II, including the nations movement from a policy of isolationism to international involvement and the Japanese attack on Pearl Harbor Kevin Latham

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Isolationism The U.S. adopted a policy of isolationism in order to stay out of foreign affairs after WW1 Wanted to avoid another European war Growing tensions in Europe and Asia led to a transition to involvement in foreign affairs

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Pre-Pearl Harbor 1937, Japan invades China This was known as the Sino-Japanese War Brutality was a main tactic used to conquer China Many Americans opposed

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Pre-Pearl Harbor Japanese invasion of China led to oil supply cut off by the U.S. Without oil, Japan could not operate Japan decides to attack U.S. naval base named Pearl Harbor in Honolulu, Hawaii December 7 th, 1941

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Following Pearl Harbor The following day, U.S. declares war on Japan In turn, Germany declares war on U.S. The U.S. enters WW2