How many Americans died in the raid on Columbus, NM?

The raid on Columbus, New Mexico, occurred on March 9-10, 1916, when a group of Mexican revolutionary troops led by Francisco "Pancho" Villa attacked the town. During this raid, it is documented that 19 Americans were killed, which includes both military personnel and local civilians. This event was significant in U.S. history as it led to the American military's punitive expedition into Mexico, commanded by General John J. Pershing. The raid highlighted tensions in U.S.-Mexico relations during a tumultuous period marked by revolution and instability. The number of fatalities places the attack in a severe context of violence, thus affirming that this answer accurately reflects the casualties of the raid.