200601-N-VY537-816 PORT HUENEME, Calif. Seabees assigned to Naval Mobile Construction Battalion (NMCB) 4 work to raise a base for a timber tower under construction during the battalion’s technical exercise. Seabees are the expeditionary engineering and constructions experts of the naval service. They provide task-tailored, adaptable and combat-ready engineering, and construction forces that deploy to support Navy objectives globally. (U.S. Navy photo Lt. j. g. Wesley Richins/Released)