A chemical, biological, radiological and nuclear defense Marine rappels into a cavern with equipment March 29 during confined space entry training on Marine Corps Air Station Futenma, Okinawa, Japan. Training in the 84-foot deep cavern allowed CBRN Marines to train in a real world underground environment that presented geographic and tactical challenges. During the training, teams of Marines measured oxygen levels in the cavern, located and neutralized threats. The Marine is with Headquarters Battalion, 3rd Marine Division, III Marine Expeditionary Force.
Cpl. Janessa Pon
Taken on 29 March 2016
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