The Red River Canyon affair, or the Battle of Red River Canyon, was a military action fought during the Taos Revolt of the Mexican–American War. Although the Americans mistakenly called this river by the name "Red", it was actually then and now more correctly called the Canadian River. On 26 May 1847, a detachment of American troops, traveling through northern New Mexico, were attacked by a combined force of Mexican militia with their Apache, Kiowa, and Comanche allies.