U.S. Marine Corps photo by Lance Cpl. Mark W. Stroud/Released 110718-M-0000L-001.jpg
Jul 18, 2011
Pfc. Nicholas A. White, satellite operator, Marine Wing Communications Squadron 18, Marine Air Control Group 18, 1st Marine Aircraft Wing, III Marine Expeditionary Force, collects water from a field-expedient water purification system during the Jungle Survival Course, a five-day survival course, at the Jungle Warfare Training Center July 18. The three-tiered purification system was composed of a top layer of grass, a middle layer of sand and a bottom layer of charcoal.
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