U.S. Marines, left, and Japan Ground Self-Defense Force, conduct decontamination drills on a MV-22B Osprey at Marine Corps Air Station Futenma in Okinawa, Japan, as part of bilateral study with Japan Ground Self-Defense Force, June 17, 2015. Decontamination drills support missions carried out in a contaminated environment. Marines are Chemical Biological Radiological and Nuclear personnel with 15th Nuclear Biological Chemical Company, 1st Marine Air Wing, III Marine Expeditionary Force. JGSDF members are with Nuclear Biological Chemical Unit 15th Brigade. (U.S. Marine Corps photo by Lance Cpl. Samantha Villarreal/photo released)