The Battle at Little Bighorn was played in 1876 when Sioux and Cheyenne left their reservations led by Sitting Bill and Crazy Horse, bitterly for continuing the colonization of the white people on the Indian land. They assembled in Montana, then at Little Bighorn with 3,000 warriors attacking Custer's men and killing them all. This battle, also known as The Custer's Last Stand, has caused resentment among the whites, while in the meantime, the US government has increased its efforts to subdue Indian tribes. Within the next five years, all the tribes of Sioux and Cheyenne were limited in their reservations.
The answer is: B.
