201113-N-OA391-1001 SAN DIEGO, Calif. (Nov. 13, 2020) Seabees assigned to Naval Mobile Construction Battalion FOUR (NMCB-4) work closely with Marathon Construction Corp to ensure successful pile driving operations. NMCB-4 is conducting pile driving for a Short Approach Lighting System for Naval Air Station North Island. Seabees are the expeditionary engineering and construction experts of the naval service providing task-tailored, adaptable and combat-ready engineering and construction forces that deploy to support global Navy objectives. (U.S. Navy photo by Engineering Aide 2nd Class Vincent Paul Arnuco/ Released)