What event led to the U.S. entering World War I? 🔊
The event that led to the United States entering World War I was the interception of the Zimmermann Telegram in early 1917. The telegram was a secret communication from Germany to Mexico proposing a military alliance against the U.S. in exchange for the return of territories lost to the U.S. This revelation, along with Germany's unrestricted submarine warfare that threatened American shipping, swayed public opinion in favor of intervention. On April 6, 1917, the U.S. Congress declared war on Germany, marking a significant shift in the conflict’s dynamics and ultimately contributing to the Allied victory.
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