Gen. Arnold W. Bunch, Jr., commander of Air Force Materiel Command, speaks during the Air Force Sustainment Center’s change of command ceremony at Tinker Air Force Base, Oklahoma, Aug. 17, 2021. Headquartered at Tinker AFB, AFSC is responsible for the sustainment of nearly every weapons system in the Air Force inventory, and has logistics complexes throughout the United States. (U.S. Air Force photo by 2nd Lt. Leyinzca Bihlajama)