Answer:
3
Explanation:
The Zimmerman Telegram was a secret communication sent in 1917 from the German Foreign Office to the German ambassador in Mexico, proposing a military alliance between Germany and Mexico in the event that the United States entered World War I against Germany. In exchange for Mexico's support, Germany promised to help Mexico regain territory lost to the United States, specifically the states of Texas, New Mexico, and Arizona. When the contents of the telegram were intercepted and deciphered by British intelligence, it caused outrage in the United States and significantly influenced public opinion. The revelation of Germany's attempt to incite Mexico to wage war against the U.S. was a major factor in swaying American sentiment towards entering the war on the side of the Allies. Subsequently, the United States declared war on Germany on April 6, 1917, marking its entry into World War I.