The U.S. Army led by Lt. Austin Henly massacred 27 Cheyenne Indians, including 19 men, and 8 women and children, on the Sappa Creek, in Kansas.[456][457]

Battle of the Little Big HornGreat Sioux WarPublished 1889
With the lure of gold discovered in the Black Hills and the westward force of Manifest Destiny, white settlers trespassed on Sioux protected lands used for religious and marital ceremonies. Red Cloud reluctantly entered negotiations on May 26, 1875, but other Sioux chiefs readied for war.[458] Grant told the Sioux leaders to make "arrangements to allow white persons to go into the Black Hills."Antagonistic toward Native American culture, Grant told them their children would attend schools, speak English, and prepare "for the life of white men."[441]
On November 3, 1875, Grant held a meeting at the White House and, under advice from Sheridan, agreed not to enforce keeping out miners from the Black Hills, forcing Native Americans onto the Sioux reservation.[459] Sheridan told Grant that the U.S. Army was undermanned and the territory involved was vast, requiring great numbers of soldiers to enforce the treaty.