Col. John Lesho, 339th Flight Test Squadron commander, recites the oath of office, led by Col. Craig Simmons, Headquarters Air Force Reserve Command F-16 functional area manager, during a change of command ceremony Sep. 17, 2020, at Robins Air Force Base, Georgia. Lesho took command of the 339th FLTS in September of 2018 and will go on to serve as the Headquarters, Air Force Reserve Command director of safety. (U.S. Air Force photo by Jamal D. Sutter)