The Battle of Little Bighorn was fought between the U.S. cavalry and the Lakota, Cheyenne, and Arapaho tribes. The cavalry, led by George Custer, was comprised of 200 men. The Indian forces were comprised of 2,000-4,000. Custer, knowing these numbers, nevertheless led his troops into battle. One of his men was allowed to go because he was half-Indian; everyone else was killed. This battle led to more slaughtering of Indians, because back in the East, this looked like a massacre of Americans.