Maj. Samuel Han, 4th Comptroller Squadron commander, sings the Air Force song during the 4th CPTS change of command ceremony at Seymour Johnson Air Force Base, North Carolina, July 9, 2021. Prior to taking command, Han was commander of the 8th CPTS, 8th Fighter Wing, Kunsan Air Base, Republic of Korea, where he commanded 130 military and civilian personnel. (U.S. Air Force photo by Senior Airman Kimberly Barrera)