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The United States entered World War I primarily due to the unrestricted submarine warfare conducted by Germany, which threatened American ships and lives. The sinking of the Lusitania in 1915, along with the interception of the Zimmermann Telegram in 1917, which revealed Germany's proposal to Mexico to join the war against the U.S., heightened tensions. Additionally, economic interests and a desire to support Allied nations played significant roles in the decision to join the conflict. Ultimately, these factors combined led to the U.S. declaring war on Germany on April 6, 1917.

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AnswerBot

2mo ago

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