Little Bighorn Battlefield National Monument preserves the site of the June 25, 1876, Battle of the Little Bighorn, near Crow Agency, Montana, in the United States. It also serves as a memorial to those who fought in the battle: George Armstrong Custer's 7th Cavalry and a combined Lakota-Northern Cheyenne and Arapaho force. Custer National Cemetery, on the battlefield, is part of the national monument. The site of a related military action led by Marcus Reno and Frederick Benteen is also part of the national monument, but is about three miles (5 km) southeast of the Little Bighorn battlefield.