Final answer:
The Zimmermann Telegram was a coded message sent by Germany to Mexico during World War I. It offered German support for Mexico's recovery of territory lost during the Mexican-American War, making it difficult for President Wilson to maintain neutrality.
Step-by-step explanation:
The Zimmermann Telegram was a significant event during World War I. It was a coded message sent by Germany to Mexico in 1917, proposing a military alliance in the event that the United States entered the war on the side of the Allies. The telegram offered German support for Mexico's recovery of territory lost during the Mexican-American War. This revelation made it difficult for US President Woodrow Wilson to maintain neutrality and ultimately played a role in swaying public opinion towards entering the war.
Keywords: Zimmermann Telegram, World War I, German support, Mexican-American War, Woodrow Wilson
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