Steelworker 3rd Class John Dubois assigned to Naval Mobile Construction Battalion One (NMCB-1) Detachment Sasebo measures a ceiling tile which will be installed in a new permanent guard house being built for the amphibious assault ship USS Essex (LHD 2) pier gate guards. NMCB-1 is on a regularly scheduled six-month deployment from Naval Construction Battalion Center, Gulfport, Miss., and are scheduled to conduct various upgrades to existing facilities and facility installation projects at Fleet Activities, Sasebo. U.S. Navy photo by Photographer?s Mate 2nd Class Andrew D. Wiskow.