Zimmermann Telegram
The Zimmermann Telegram as it was sent from Washington to Ambassador Heinrich von Eckardt (who was the German ambassador to Mexico) Mexican territory in 1916 (dark green), territory promised to Mexico in the Zimmermann telegram (light green), the pre-1836 original Mexican territory (red line) v t e United States involvement in the Mexican Revolution Mexican Revolution Tampico Affair Ypiranga incident Veracruz Border War 1st Agua Prieta 1st Ciudad Juarez Bandit War Norias Ranch Ojo de Agua 2nd Nogales Santa Isabel Columbus Mexican Expedition Guerrero Agua Caliente Parral Tomochic Ojos Azules Glenn Springs Rubio Ranch Castillon Las Varas Pass San Ygnacio Carrizal Zimmermann Affair Brite Ranch 1st Pilares Neville Ranch 2nd Pilares Porvenir 3rd Nogales 3rd Ciudad Juárez Ruby The Zimmermann Telegram (or Zimmermann Note or Zimmerman Cable ) was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexi...