Keywords: US Navy 060515-N-6889J-050 Seabees assigned to Naval Mobile Construction Battalion Seven Four (NMCB-74) check each other for discrepancies during a Chemical Biological Radiological (CBR) drill at Naval Construction Battalion Ce.jpg en Gulfport Miss May 15 2006 - Seabees assigned to Naval Mobile Construction Battalion Seven Four NMCB-74 check each other for discrepancies during a Chemical Biological Radiological CBR drill at Naval Construction Battalion Center Gulfport The CBR drill instructed the Seabees on the different levels of Mission Oriented Protective Postures MOPP to prepare them for their upcoming deployment U S Navy photo by Photographer's Mate 2nd Class Gregory N Juday RELEASED 2006-05-15 060515-N-6889J-050 Navy http //www navy mil/view_image asp id 34553 U S Navy photo by Photographer's Mate 2nd Class Gregory N Juday PD-USGov-Military-Navy Naval Construction Battalion Center Gulfport People wearing gas masks Mission Oriented Protective Posture M40 Field Protective Mask |