171108-N-FT956-0258 DIEGO GARCIA, British Indian Ocean Territory (Nov. 8, 2017) Utilitiesman Constructionman Recruit Benjamin Rebs, assigned to Naval Mobile Construction Battalion (NMCB) 4, operates a pneumatic jackhammer to break up the six ft. concrete slab. NMCB 4 is forward deployed to the pacific region, ready to support major combat operations, humanitarian assistance/disaster relief operations, and provide general engineering support to Navy, Marine Corps and joint operational forces. (U.S. Navy photo by Builder 2nd Class Christopher J. Moore/Released)

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