Radio check
U.S. Air Force Senior Airman Christopher Beil, left, 822nd Base Defense Squadron fireteam member, and Staff Sgt. Marcus McComb, 822nd BDS fireteam leader, perform a radio check during exercise GLOBAL EAGLE, Oct. 29, 2015, at Avon Park Air Force Range, Fla. During the two-week exercise, members of the 822nd BDS, the Royal Air Force Regiment and the French air force conducted counter-improvised explosive device procedures, tactical combat casualty care and combatives. (U.S. Air Force photo by Senior Airman Ryan Callaghan/Released)