Airman 1st Class Nicolas Smith, a 455th Expeditionary Aircraft Maintenance Squadron crew chief, marshals an F-16 Fighting Falcon April 25, 2017, on Bagram Airfield, Afghanistan. F-16 Fighting Falcons from the 555th Fighter Squadron, Aviano Air Base, Italy, deployed to Bagram Airfield as part of a constant rotation of fighter aircraft. (U.S. Air Force photo by Staff Sgt. Benjamin Gonsier)