Border War

The Mexican Border War, also known as the Border Campaign, refers to a series of military engagements which took place between the United States military and several Mexican factions in the Mexican–American border region of North America during the Mexican Revolution.
From the beginning of the Mexican Revolution in 1910, the United States Army was stationed in force along the border and, on several occasions, fought with Mexican rebels or regular federal troops.

The height of the conflict came in 1916 when revolutionary Pancho Villa attacked the American border town of Columbus, New Mexico. In response, the United States Army, under the direction of General John J. Pershing, launched a punitive expedition into northern Mexico, to find and capture Villa. Although Villa was not captured, the US Army found and engaged the Villista rebels, killing Villa's two top lieutenants. The revolutionary himself escaped, and the American army returned to the United States in January 1917.

The conflicts resulted in an increase of U.S. border security and involved Arizona National Guard members supplementing U.S. Forces stationed in the state.

Wikipedia contributors. "Mexican Border War." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 1 Mar. 2026. Web. 18 Apr. 2026.