In early 1917, the British intercepted a message from the Germany foreign minister, Arthur Zimmerman, to his ambassador in Mexico.
~In the note, Zimmerman authorized his ambassador to propose that Germany would help Mexico "to reconquer the lost territory in New Mexico, Texas, and Arizona" in return for Mexican support support against the United States.
~Britain revealed the Zimmerman note to the American government. The note became public and came to be known as Zimmerman Telegram and the anti-German felt intensified in the United States.