190510-N-TP832-1157 PORT HUENEME, Calif. (May. 10, 2019) Cmdr. Jonathan Nieman, prospective commanding officer of Naval Mobile Construction Battalion (NMCB) 3, Cmdr. Joseph Harder, commanding officer of NMCB-3, and Capt. David McAlister, commodore of Naval Construction Group 1, walking, troop the line during the NMCB-3 change of command ceremony on Naval Base Ventura County, Port Hueneme, May 10. 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 global Navy objectives. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Lopez/Released)