180509-N-ZI635-0090 GULFPORT, Miss. (May 9, 2018) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 133 don chemical, biological, and radiological (CBR) suits during a CBR training drill at Naval Construction Battalion Center Gulfport. NMCB-133 is training to familiarize Seabees with CBR gear in preparation for an upcoming deployment readiness certification. (U.S. Navy photo by Mass Communication Specialist 2nd Class George M. Bell/Released)