From the Pequot War forward, Alvin Josephy wrote in a 1979 article in The Indian Historian,
Whites gave the Native Americans three options. The first was that they could stop being Indians and turn themselves into Whites. They would have their hair cut, wear White men’s clothes, become Christians, live in White men’s houses, become farmers or mechanics, and adopt the White men’s language, customs, ways of living, values, society, and culture. In other words, they would become assimilated and disappear as Indians. If they refused, they would have to be pushed away, westward to a safe distance, where they would have no contact with White society. They would continue as “wild” Indians, unconquered, but neither a physical or cultural threat to the Whites. If they refused to move or become assimilated, they had a third option: extermination.
…during the four years of the Civil War… more Indian tribes were destroyed by whites and more land was seized from them than in almost any comparable time in American History. Although some of the most heinous massacres of Indian peoples… accompanied this process, the warfare in various parts of the West was inconclusive, and continued on after 1865, when Regular troops… sought under Sherman, Sheridan, Custer and others to complete the conquest of those tribes that were still able to resist.
|Sand Creek Massacre|
In 1964, at Sand Creek in Colorado, Colonel John Chivington descended on a peaceful village of 550 Southern Cheyenne and Arapaho, and his Colorado cavalrymen bashed in babies’ heads and took scalps, skin, and genitals, which they later paraded in Denver.