A U.S. Air Force crew chief signals Lt. Col. Christian Bergtholdt, 27th Fighter Squadron director of operations, as he taxis on the flightline at Joint Base Langley-Eustis, Va., Oct. 19, 2017. During the six-month deployment, U.S. Air Force F-22 Raptors and U.S. Air Force Airmen from the 1st Fighter Wing supported the fight against the Islamic State in Iraq and Syria. (U.S. Air Force photo by Staff Sgt. Areca T. Bell)