A British airman assigned to the Supreme Headquarters Allied Powers Europe stands without his helmet inside the U.S Army Training Support Center Benelux-operated Chemical, Bacteriological, Radiological and Nuclear (CBRN) chamber on Chièvres Air Base, Belgium, July 23, 2014. British forces assigned to different units in NATO or SHAPE trained under supervision of the British Joint European Training Team. (U.S. Army photo by Visual Information Specialist Pierre-Etienne Courtejoie / Released)