An autonomous underwater vehicle waits in a parking lot during a demonstration of experimental underwater research technology for Marines with 2nd Intelligence Battalion, II Marine Expeditionary Force during the unit’s training exercise at Camp Pendleton, Calif., July 15, 2014. The Marines joined Navy personnel at the base to test out their own hydrographic survey programs, which they deployed off the coast using Zodiac boats. (U.S. Marine Corps photo by Sgt. Paul Peterson)
Sgt. Paul Peterson
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