Zimmermann Telegram Background Zimmermann Telegram Discovery Zimmermann Telegram Significance Discovery of Original Zimmerman Telegram Lesson Summary Register to view this lesson Are you a student or a teacher? I am a student I am a teacher FAQ Why did the Zimmerman Note anger the US? The Zimmerman...
Zimmermann Telegram, coded message sent January 16, 1917, by German foreign secretary Arthur Zimmermann to the German minister in Mexico. Intercepted by the British, the note revealed a plan to renew unrestricted submarine warfare and to form an alliance