Builder 3rd Class Asia A. Gilchrist (left), from McCormick, S.C., and Builder 3rd Class Joshua A. Chastain, from Norwood, Mo., both assigned to Naval Mobile Construction Battalion 11, prepare mortar during a masonry course that utilizes the Technical Trainer on Naval Construction Battalion Center, Gulfport. (U.S. Navy photo by Mass Communication Specialist 1st Class Jonathan Carmichael)