171222-N-FT956-1939 DIEGO GARCIA, British Indian Ocean Territory (Dec. 22, 2017) Builder 1st Class Jason Perry, left, and Builder 3rd Class Kiara Harris, lower right, both assigned to Naval Mobile Construction Battalion (NMCB) 4, shovel concrete evenly throughout the footer while Chief Construction Mechanic James Eaton, upper right, controls the concrete flow. 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)