U.S. Air Force Lt. Col. Quinton Bridge, a pilot from the 191st Air Refueling Squadron, Utah Air National Guard, completes the preflight check on a Boeing KC-135 Stratotanker before a refueling mission with a B-52 Stratofortress, from the 2nd Bomb Wing, Barksdale Air Force Base, La., March 26, 2012. The 151st Air Refueling Wing routinely supports air operations across the western United States.