NELLIS AIR FORCE BASE, Nev.-- A Pakistan Air Force crew chief renders a salute to his F-16 and air crew members prior to take off during Red Flag 10-4 at Nellis on July 29, 2010. Approximately 100 maintenance, support and aircrew personnel arrived here in mid-July to participate in the intense two-week Red Flag exercise, which concentrates on large force combat employment. (U.S. Air Force Photo by Lawrence Crespo)
