180228-N-FT956-3305 DIEGO GARCIA, British Indian Ocean Territory (Feb. 28, 2018) Construction Electrician 2nd Class Santiago Guzman uses a cordless drill to pre-drill a Concrete Masonry Unit (CMU) wall to run water pipes from one area to another on the repairs to telecom storage facility. 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)