Answer: D.battle of little bighorn
The Battle of Little Bighorn (June 25-26, 1876) was a conflict between the United States Army and the combined forces of the Lakota, Northern Cheyenne and Arapaho. It was the most significant action of the Great Sioux War of 1876 and an overwhelming victory for the Native Americans. The battle was fought along the Little Bighorn River in the Crow Indian Reservation in Montana.