A B-52H Stratofortress assigned to 20th Bomb Squadron, Barksdale Air Force Base, La., takes off during a Red Flag exercise at Nellis Air Force Base, Nev., Jan. 30, 2013. The B-52H is a long-range, strategic heavy bomber capable of dropping or launching a wide array of munitions, which has been part of the U.S. arsenal for more than 60 years. (U.S. Air Force photo/Staff Sgt. Vernon Young Jr.)