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British intelligence intercepted and decoded a telegram from German Foreign Mini
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February 3

Zimmermann Telegram Exposed: America Moves Toward War

British intelligence intercepted and decoded a telegram from German Foreign Minister Arthur Zimmermann to the German ambassador in Mexico on January 16, 1917, proposing a military alliance against the United States. Germany promised Mexico the return of Texas, New Mexico, and Arizona if it attacked its northern neighbor. The British sat on the telegram for weeks before revealing it to Washington, timing the release for maximum political impact. President Wilson had been reelected on a platform of neutrality and was reluctant to enter the European war. The Zimmermann Telegram, combined with Germany's resumption of unrestricted submarine warfare, made neutrality impossible. When Zimmermann himself confirmed the telegram's authenticity in a press conference, American public opinion shifted decisively toward war. Congress declared war on April 6, 1917, transforming the conflict from a European struggle into a global one.

February 3, 1917

109 years ago

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