Colombian Air Force crew chiefs, wait for the last of the fuel to drain from the fuel tank on a Kfir during Red Flag 12-4 July 23, 2012, at Nellis Air Force Base, Nev. Since 1975 air crews from the USAF and other U.S. military branches and foreign allies have participated in Red Flag. (U.S. Air Force photo by Airman 1st Class Daniel Hughes)
United States Air Force
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