200917-F-PO994-0052
Lt. Cols. John Lesho, 339th Flight Test Squadron commander, and Matthew Griffin, 339th FLTS director of operations, sit as members of the official party while Col. Sean Bittner, 413th Flight Test Group commander, gives remarks during a change of command ceremony Sep. 17, 2020, at Robins Air Force Base, Georgia. The ceremony honored Lesho for his time as commander and celebrated Griffin as the unit’s next leader. (U.S. Air Force photo by Jamal D. Sutter)