Det 1, 66th TRS Change of Command
U.S. Air Force Lt. Col. Erik Haynes, the 66th Training Squadron (TRS) commander, left, receives the Detachment 1, 66th TRS guidon from Lt. Col. William Mercer, the former Det. 1, 66th TRS commander, during a change of command ceremony June 9, 2017, at Eielson Air Force Base, Alaska. Mercer will go on to serve as the director of operations for the 22nd TRS at Fairchild Air Force Base, Washington. (U.S. Air Force photo by Airman Eric Michael Fisher)