U.S. Air Force Senior Airman Manuel Jimenez, 555th Fighter Squadron Crew Chief, Aviano Air Force Base, Italy, prepares the cockpit of an F-16 Fighting Falcon for take-off at Nellis Air Force Base, Nev., Aug. 2, 2016. Green Flag 16-08 is a joint U.S. Air Force, Army and Navy exercise designed to train participants for complex aerial combat scenarios while supporting high-intensity ground and sea operations. (U.S Air Force photo by Airman 1st Class Kevin Tanenbaum)