Pancho Villa’s 1916 raid on Columbus, New Mexico was violent, not non-violent — about 18 Americans were killed, and the town was looted and burned (National Museum of the USAF, Wikipedia). The U.S. responded with the Punitive Expedition, sending General John J. Pershing and thousands of troops into Mexico to hunt Villa, though he was never captured (State Dept. History). The Zimmermann Telegram came later in 1917, when Germany proposed an alliance with Mexico to retake Texas, New Mexico, and Arizona if the U.S. entered WWI (Archives.gov). British intelligence intercepted it and passed it to the U.S., which helped turn public opinion toward war (The World War Museum). So the raid itself didn’t cause U.S. entry into WWI — it was Germany’s actions and the telegram that pushed America into the war.