After months of grievances over poor treatment under an existing treaty, a thousand Navajo warriors attacked Fort Defiance in New Mexico Territory. In one of the only instances of a sustained Indian attack on a U.S. Army fort, a day-long battle resulted in the Navajo being driven off with around twenty killed. The three companies of the Third Infantry Regiment defending the fort suffered one man dead and three wounded. (By John Osborne)
Source Citation
Ron Field and Adam Hook, Forts of the American Frontier: The Southern Plains and Southwest (New York: Osprey Publishing, 2006), 44.