Air Force Capt. David walks out to an F-16 Fighting Falcon aircraft before a night mission at Bagram Airfield, Afghanistan, Jan. 13, 2017. David is a pilot assigned to the 79th Expeditionary Fighter Squadron. David enlisted in the Air Force in 2004 as an F-16 avionics specialist and now flies the same airframe he used to maintain. Air Force photo by Staff Sgt. Katherine Spessa