Air Force F-16 fighters sit on the flightline at Nellis AFB, Nev., against the backdrop of the Las Vegas skyline, prior to the start of a Red Flag training exercise, Jan. 22, 2011. )
Air Force F-16 fighters sit on the flightline at Nellis AFB, Nev., against the backdrop of the Las Vegas skyline, prior to the start of a Red Flag training exercise, Jan. 22, 2011. )