The K765 riot control agent capsule burns to create the CS gas for a gas chamber on Camp Pendleton, Calif., December 13, 2017. Marines are required to go through the gas chamber as a part of their training to make sure they are mission ready. ( Marine Corps photo by Lance Cpl. Betzabeth Y. Galvan)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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Keywords: &sbn, ., 33, area, battalion, betzabeth, camp, chamber, cpl., cs, galvan, gas, headquarters, lance, m50, margarita, marines, mask, mcb, pendleton, support, zd670