MARINE CORPS BASE CAMP PENDLETON, Calif. - 1st Lt. Carl Welch inquires about the Ground Renewable Expeditionary Energy Network System at the Pacific Views Events Center during the “Tactical & Technology Day” on Camp Pendleton April 20, 2016. The system collects solar energy and converts it into useable energy. Welch is a communications officer with 3rd Low Altitude Air Defense Battalion, 3rd Marine Aircraft Wing, and is a Port Orchard, Wash. native. ( Marine Corps photo by Lance Cpl. Shellie Hall/ Not Released)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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