Fort Abraham Lincoln log scouts' quarters. Water was supplied to the fort by being hauled from Missouri River in wagons, while wood was supplied by contract. By 1873, the 7th Cavalry moved into the fort to ensure the expansion of the Northern Pacific Railway. The first post commander of the expanded fort was Lieutenant Colonel George A. Custer, who held the position until his death in 1876. In 1876, the Army departed from here as part of the Great Sioux War of 1876-77, resulting in Custer's defeat at the Battle of the Little Bighorn, where they were to push the non-treaty Indians back
7th Cavalry Regiment was Lt. Col. Brice C. W. Custer, the grand-nephew of former commander George Armstrong Custer. 7th Cavalry Regiment was reorganized under a new table of organization and equipment on 25 March 1949, when the troops were once again designated as companies. The 7th Cavalry fought in the Korean War's bloodiest battles. These include Hwanggan, Poksong-Dong, Kwanni, and Naktong River Defense (Battle of Pusan Perimeter). When the 1st Cavalry Division attacked north, the 7th Cavalry was in front, smashing 106 miles behind enemy lines in an historic 24 hours. Three more Presidential Unit Citations were added to the colors. In the