What was in the Zimmermann telegram that changed the isolationist stance of the United States?

Responses
It outlined a plan to kidnap prominent American leadership figures.
It offered US territory to Mexico if Mexico aided Germany’s war effort.
It called Americans cowards because they were not willing to fight.
It claimed that the United States was going to be attacked by Russia.

The correct answer is: It offered US territory to Mexico if Mexico aided Germany’s war effort.