160708-N-DH124-149 OKINAWA, Japan (July 8, 2016) - Cmdr. Jeffrey Lengkeek transfers the battalion flag to Cmdr. James Cho during the change of command ceremony where Cho relieved Lengkeek as commanding officer of Naval Mobile Construction Battalion (NMCB) 4. Lengkeek is selected for captain and has orders to Naval Special Warfare Development Group in Dam Neck, Va. (U.S. Navy photo by Mass Communication Specialist 1st Class Rosalie Chang/Released)