A Marine stands against the wall during annual gas chamber qualification and awaits instruction at landing zone Boondocker, Marine Corps Base Hawaii, Sept. 30, 2014. ( Marine Corps photo by Cpl. Matthew Callahan/Released) Inside a Marine gas chamber 140930-M-IN448-051


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Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

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