171229-N-FT956-2069 DIEGO GARCIA, British Indian Ocean Territory (Dec. 29, 2017) Construction Electrician 3rd Class George Oliver, assigned to Naval Mobile Construction Battalion (NMCB) 4, uses a piece of rebar to move concrete around inside the form making sure there are no voids. NMCB 4 is forward deployed to the pacific, 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)