First Lt. Kendall Smith, 96th Bomb Squadron B-52H Stratofortress navigator from Barksdale Air Force Base, La., prepares his equipment prior to launching a mission, July 24, at Nellis AFB, Nev., during a Red Flag exercise. Red Flag provides an opportunity for Air Force Global Strike Command units to demonstrate their ability to deploy long-range strike forces and deliver precision effects that strengthen the nuclear enterprise.