An F-16 FIghting Falcon from the 64th Agressor Squadron at Nellis Air Force Base is seen from a KC-135R Stratotanker from the 93rd Air Refueling Squadron, Fairchild Air Force Base, Spokane, Wash. during a Red Flag exercise flying from Nellis Air Force Base in Las Vegas on Friday, July 20, 2012. A Red Flag air combat training exercise commenced this week with collaboration between the U.S., Colombia and the United Arab Emirates. (Jessica Ebelhar/Las Vegas Review-Journal)