History of the United States Army of the Little Bighorn, in which combined Sioux and Cheyenne forces defeated the 7th Cavalry, led by General George Armstrong Custer. The West was largely pacified by 1890, apart from small Indian raids along the Mexican border. Combat in the Indian wars resulted in the deaths of about 4,340 people, including soldiers, civilians and Native Americans. In all the Indian wars combined from 1790 to 1910, regular cavalry units fought in about 1000 engagements and suffered more than 2000 total killed and wounded. Disease and accidents caused far more Army casualties than combat; annually, eight soldiers per 1000 died from
Battle of the Little Bighorn Sitting Bull's ranks for the summer buffalo hunt. The agents did not take into account the many thousands of these "reservation Indians" who had unofficially left the reservation to join their "uncooperative non-reservation cousins led by Sitting Bull". Thus, Custer unknowingly faced thousands of Indians, including the 800 non-reservation "hostiles". All Army plans were based on the incorrect numbers. Although Custer was severely criticized after the battle for not having accepted reinforcements and for dividing his forces, it must be understood that he had accepted the same official government estimates of hostiles in the area which Terry and Gibbon had