SAN DIEGO (Nov. 17, 2020) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 4 place a metal template to guide pile placement before driving piles into the ground. 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)