Battle of Columbus (1916) in the context of 13th Cavalry Regiment (United States)

The Pancho Villa Expedition, now known officially in the United States as the Mexican Expedition but originally referred to as the "Punitive Expedition, US Army," was a military operation conducted by the United States Army against the paramilitary forces of Mexican revolutionary Francisco "Pancho" Villa from March 14, 1916, to February 7, 1917, during the Mexican Revolution of 1910–1920.

The expedition was launched in retaliation for Villa's attack on the town of Columbus, New Mexico, an incident of the larger Mexican Border War. The declared objective of the expedition by the administration of US President Woodrow Wilson was the capture of Villa. Despite locating and defeating the main body of Villa's command who were responsible for the Columbus raid, US forces were unable to achieve Wilson's stated main objective of preventing Villa's escape.

Columbus is an incorporated village in Luna County, New Mexico, United States, about 3 miles (5 km) north of the Mexican border. It is considered a place of historical interest, as the scene of a 1916 attack by Mexican general Francisco "Pancho" Villa that caused the United States to send 10,000 troops there in the Mexican Expedition (originally referred to as the "punitive Mexican Expedition"). Columbus's population was 1,664 at the 2010 census.

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.