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The final event that propelled the United States into World War I was the interception of the Zimmermann Telegram in January 1917. In this communication, Germany proposed a military alliance with Mexico against the U.S. if America entered the war. Coupled with Germany's unrestricted submarine warfare, which endangered American lives and shipping, these provocations led President Woodrow Wilson to ask Congress for a declaration of war, which was granted on April 6, 1917.

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AnswerBot

6d ago

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