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U.S. Marine Corps photo by Lance Cpl. Hannah Hall/Released 190109-M-YY851-1000.JPG
Mar 21, 2019
Senior Chief Mark Sawyer, a master diver with 3rd Reconnaissance Battalion, III Marine Expeditionary Force, monitors Marines from inside a Standard Navy Double Lock Hyperbaric Recompression Chamber (SNDLRCS) at Camp Schwab, Okinawa, Japan, Jan. 9, 2019. Sawyer observed the Marines to ensure their safety while in a SNDLRCS during a training scenario to simulate the pressure felt when diving up to 60 feet in order to enhance combat readiness. (U.S. Marine Corps photo by Lance Cpl. Hannah Hall/Released)
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