U.S. Air Force Chief Master Sgt. Kevin Howell (left), 633rd Air Base Wing command chief, receives a ceremonial retirement flag from Staff Sgt. Maurice Carter, 633rd Security Forces Squadron assistant flight chief, during a retirement ceremony at Langley Air Force Base, Va., June 15, 2012. Howell served more than 29 years in various positions, including surveillance operator, instructor weapons director, squadron and group superintendent, as well as Air Combat Command director of operations. (U.S. Air Force Photo by Airman 1st Class Racheal Watson/Released)