The Battle of Little Bighorn was fought on June 25, 1876 between Indian tribes led by Sitting Bull and the U.S. Army troops led by Lt. Colonel George Custer after the tribes missed the deadline to relocate to a new reservation, as the U.S. Army wanted to search for and possess gold discovered on the native land. Custer's troops were outnumbered and defeated in what became known as Custer's Last Stand, a major victory for Sitting Bull and the united tribes.