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The Japaneze bombed Pearl Habour on December 7th 1941 The US got involved in WWII by the Japanese attack on Pearl Harbour (Japan attacked the US as they saw them as a threat to there growth in the pacific and Pearl Harbour was the US main Pacific military port); as Germany was Japan's ally they declared war on the US for no apparent reason other than that Hitler thought it was a good idea. So the US joined Britain in the Allies and joined the fight against the Nazis and Britain helped the US attack Japan.

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16y ago

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