Respuesta :
Answer:
Both the Zimmermann Telegram and British Sinking of the Lusitania.
But, mostly the Zimmermann Telegram
Explanation:
Answer:
The Zimmerman Telegram
Explanation:
The Zimmerman Telegram was a secret comunication from Germany to Mexico. Germany told Mexico that if the U.S. joined the war, Mexico would get Texas, Arazona, and New Mexico. The U.S. was not happy about that. The German sinking of the Lusitania also angered the U.S.