The _______ stated that if war should break out between Germany and the U.S, Mexico would be urged to side with Germany and to attack the U.S.
a. Hindenburg Note
b. Zimmerman Note
c. German Note



Answer :

B however, before it could come to fruition, british intelligence intercepted the telegram and decyphered it
The answer is b) the Zimmerman note- a note to Mexico saying that if the u.s. Declares war on Germany then Mexico should declare war on the u.s.