Question

in the telegram, germany asked mexico to join forces if the united states entered the war. zimmermann german mexican lusitania

Explanation:

The Zimmermann Telegram was a secret diplomatic communication from Germany to Mexico during World War I. Germany proposed that if the United States entered the war, Mexico should join Germany's side. In return, Germany promised to help Mexico regain territories lost to the United States (such as Texas, New Mexico, and Arizona). This telegram was intercepted and decoded by British intelligence and then shared with the United States. It was a significant factor in the United States' decision to enter World War I. The other options: "German" is too general; "Mexican" would imply it was from Mexico, which it wasn't; "Lusitania" refers to a British ocean liner that was sunk by a German U - boat, which was another event that influenced U.S. public opinion but not a telegram asking Mexico to join forces.

Answer:

Zimmermann