Royal Australian Air Force Lead Aircraftman Randall Costello, an armament specialist from the 77th Squadron, RAAF Base Williamtown, New South Wales, performs pre-flight checks before his assigned aircraft heads out for a night training mission during Red Flag 14-1 at Nellis Air Force Base, Nev., Jan. 30, 2014. Since its establishment in 1975, Red Flag has played host to military units from more than 30 different countries. (U.S. Air Force photo by Airman 1st Class Joshua Kleinholz)
Airman 1st Class Joshua Kleinholz
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