190419-N-GG858-1043 OKINAWA, Japan (Apr. 19, 2019) Cmdr. Angel Santiago, left, commanding officer of Naval Mobile Construction Battalion (NMCB) 4, receives authority of Camp Shields in Okinawa, Japan from Cmdr. Joseph Harder, commanding officer of NMCB-3, during a Relief in Place/Transfer of Authority ceremony. Seabees are the expeditionary engineering and construction 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 by Mass Communication Specialist 2nd Class Matthew Dickinson/Released)