Official websites use .mil
Secure .mil websites use HTTPS
MCAS FUTENMA, OKINAWA, Japan – Marines suit up with mission oriented protective posture gear Jan. 11 at the gas chamber on Marine Corps Air Station Futenma, Okinawa, Japan. - MCAS FUTENMA, OKINAWA, Japan – Marines suit up with mission oriented protective posture gear Jan. 11 at the gas chamber on Marine Corps Air Station Futenma, Okinawa, Japan. In the event of a gas attack Marines need to know how to calmly react and properly don their mask. The gas chamber is a way for Marines to build confidence in their equipment by being exposed to a non-lethal and controlled environment gas attack. (U.S. Marine Corps photo by Pfc. Kelcey Seymour)