Marine Gunnery Sgt. Joseph Perara of the Marine Warfighting Laboratory guides a robot during the Department of Defense Lab Day at the Pentagon in Arlington, Va. May 14, 2015. (Department of Defense photo by EJ Hersom) 151403-D-DB155-001 by DoD News Photos

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Size: 1936px × 1291px
Photo credit: © Military Collection / Alamy / Afripics
License: Licensed
Model Released: No

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