190124-N-TP832-2123 OKINAWA, Japan (Jan. 24, 2019) Builder 1st Class Alton Rollins, assigned to Naval Mobile Construction Battalion (NMCB) 3, briefs Capt. David McAlister, commodore of Naval Construction Group 1, about the construction of k-span structures during McAlister’s visit to NMCB-3’s main body component at Camp Shields in Okinawa, Japan. NMCB-3 is forward deployed throughout the Indo-Pacific region and United States ready to support major combat operations, theater security, humanitarian assistance and disaster relief operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Lopez/Released)