How did the discovery of the Zimmermann Telegram play a role in the entrance of the United States into the war?

A: It threatened nuclear war on the U.S.

B: It promised U.S. territory to Mexico in exchange for assisting Germany.

C: It offered support to Mexico for plans to invade the U.S.

D: It threatened to cancel all international exports to the U.S.

1 answer

B: It promised U.S. territory to Mexico in exchange for assisting Germany. The discovery of the Zimmermann Telegram revealed Germany's plan to get Mexico to ally with them in World War I and promised to help Mexico regain Texas, Arizona, and New Mexico as a reward. This telegram's contents outraged American public opinion and helped bring the United States into World War I against Germany.