171215-N-FT956-1640 DIEGO GARCIA, British Indian Ocean Territory (Dec. 15, 2017) Equipment Operator Dorian Macal, left, and Construction Electrician Gilbert Valdriz, right, both assigned to Naval Mobile Construction Battalion (NMCB) 4, take measurements between two footers to confirm the spacing. 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)