The Zimmerman Note: A Proposal of Alliance

What was the Zimmerman Note and why did it lead to war with the U.S?

The Zimmerman Note proposed an alliance between Germany and Mexico during World War I, but how did this proposal impact the relationship between Germany and the United States?


The Zimmerman Note was a coded telegram sent by German Foreign Secretary Arthur Zimmermann to the German ambassador in Mexico in January 1917. In the message, Zimmermann proposed that if the United States entered the war against Germany, Mexico should ally itself with Germany. In return, Germany pledged to support Mexico in recovering lost territories in the southwestern United States, specifically Texas, New Mexico, and Arizona.

The interception and decoding of the Zimmerman Note by British intelligence, who then shared it with the United States, led to heightened tensions between the U.S and Germany. The proposal of an alliance between Germany and Mexico, with the promise of territorial gains for Mexico in the U.S, was seen as a direct threat to American interests and sovereignty.

The revelation of the Zimmerman Note further fueled anti-German sentiment in the United States and played a significant role in the decision of the U.S to enter World War I on the side of the Allies. The proposed alliance not only jeopardized diplomatic relations between Germany and the U.S but also contributed to the escalation of conflict on a global scale.

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