U.S. Air Force Col Joseph Sheffield, 28th Bomb Wing commander, gives a speech during a change of command at Ellsworth Air Force Base, South Dakota, June 15, 2023. Sheffield acted as the presiding official and relinquished Maj Nicholas DeFranco, outgoing 28th Comptroller Squadron commander, of his command. (U.S. Air Force Photo by Airman 1st Class Yendi Borjas)