A member of the British armed forces lays on the grass in a protective posture as the instructor yelled "Flash!" during a Chemical, Biological, Radiological and Nuclear (CBRN) training on Chièvres Air Base, Belgium, Feb. 26, 2015. British Forces assigned to Joint Forces Command Naples, Italy, trained under supervision of the British Joint European Training Team. (U.S. Army photo by Visual Information Specialist Pierre-Etienne Courtejoie / Released)