What was the outcome of the Battle of Little Big Horn?

In the Battle of the Little Bighorn, Sitting Bull and Crazy Horse, the two leaders of the Sioux resisted the U. S. government who wanted to confine their people to reservations. Gold was discovered in South Dakota's Hills, and the Army driven by ambition, ignored previous agreements and invaded the region. The betrayal led Sioux and Cheyenne tribesmen to join Sitting Bull and Crazy Horse and by the late spring of 1876, more than 10,000 Native Americans had met in the Little Bighorn River-which they called the Greasy Grass. Lieutenant Colonel George Armstrong Custer was not aware of the number of Indians gathered at Little Bighorn, and his forces were fiercely opposed and defeated.

Chief Crazy Horse and 2,000 Natives Americans killed Colonel Custer and all of his men.