Winfield Scott Edgerly 27, 1875. From May to September 1876, the 7th Cavalry, including Edgerly, participated in the Sioux Expedition. Edgerly was promoted to first lieutenant in the 7th Cavalry effective June 25, 1876. The regiment was engaged in the Battle of the Little Bighorn on June 26–27, 1876. Edgerly was the second in command of Company D, serving under Captain Thomas Weir; Company D was assigned to Captain Frederick Benteen's Battalion. Prior to the battle, Lieutenant Colonel George Armstrong Custer was discussing upcoming events with his junior officers; Edgerly expressed enthusiasm about the possibility of success; Custer replied that success depended on
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