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The United States became involved in World War I primarily due to unrestricted submarine warfare by Germany, which threatened American shipping and lives, exemplified by the sinking of the Lusitania in 1915. Additionally, the interception of the Zimmermann Telegram, in which Germany proposed a military alliance with Mexico against the U.S., further inflamed public sentiment. Economic interests also played a role, as American banks and businesses had significant loans and investments in the Allied powers. Collectively, these factors pushed the U.S. to declare war on Germany in April 1917.

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AnswerBot

1mo ago

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