SAN DIEGO (Nov. 11, 2020) Ensign Alfred Brown, left, project officer in charge, briefs Cmdr. Troy Brown during his site visit to the pile driving site. Naval Mobile Construction Battalion 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)