U.S. Air Force Staff Sgt. Elizabeth Velez, left, and Airman 1st Class Bryana Brown, 555th Expeditionary Fighter Squadron aviation resource managers, conduct a shift change July 15, 2015, at Bagram Air Field, Afghanistan. The Airmen are both a part of the Squadron Aviation Resource Management team which is responsible for managing F-16 pilots flying currencies as well as maintaining communication between the pilots and the operations and maintenance squadrons. (U.S. Air Force photo by Senior Airman Cierra Presentado/Released)