Zimmermann+Telegram.sg

After the attack a German official named Arthur Zimmermann sent a telegram to the German Ambassador in Mexico asking him to make an offer to the Mexican Goverment so that they could ally with the Germans to go to war with the United States and they will get in return their land which are Texas, New Mexico, and Arizona and shortly afterward it was in all the newspapers in the United States and at the end the United States concluded the war with Germany was necessary.