The Zimmerman Note, also called the Zimmerman Telegram, was a diplomatic proposal offering Mexico military aid in exchange for joining World War I as a German ally, leading to heightened tensions and US entry into the war.
The Zimmerman Note, also known as the Zimmerman Telegram, was a diplomatic proposal sent by the German Empire to Mexico offering military aid during World War I in exchange for Mexico joining the war as a German ally. The intercepted telegram, which promised Mexico territories lost to the United States (Texas, New Mexico, Arizona, California), intensified tensions between the US, Mexico, and Germany, ultimately leading to the US declaration of war against Germany in 1917.
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