British Royal Air Force Sgt. Rob Shields, member of the British Joint European Training Team, seals the Chemical, Bacteriological, Radiological and Nuclear (CBRN) suit of a trainee as UK airmen assigned to Supreme Headquarters Allied Powers Europe train in the U.S Army Training Support Center Benelux-operated CBRN chamber on Chièvres Air Base, Belgium, July 23, 2014. (U.S. Army photo by Visual Information Specialist Pierre-Etienne Courtejoie / Released)