The Zimmermann Telegram

The Zimmermann Telegram was a secret coded message sent by Germany to Mexico in 1917, during World War I. Germany proposed that Mexico ally with them and, in return, Germany would help Mexico regain territories like Texas and Arizona that they had lost. The British intercepted and decoded the message, then shared it with the United States. This revelation angered Americans and contributed to the U.S. decision to enter the war on the side of the Allies. The telegram is considered a pivotal event that influenced global history, illustrating how espionage and communication played crucial roles in wartime diplomacy.