Keywords: US Navy 081024-N-7367K-001 Seabees assigned to Naval Mobile Construction Battalion (NMCB) 1 don their MCU-2P gas masks during a chemical, biological and radiological (CBR) warfare drill at Naval Construction Battalion Center, G.jpg en GULFPORT Miss Oct 24 2008 Seabees assigned to Naval Mobile Construction Battalion NMCB 1 don their MCU-2P gas masks during a chemical biological and radiological CBR warfare drill at Naval Construction Battalion Center Gulfport The drill helps acclimate the battalion to their mission oriented protective posture suits as they prepare for field exercise Operation Desert Justice next month U S Navy photo by Mass Communication Specialist 2nd Class Demetrius Kennon/Released 2008-10-24 081024-N-7367K-001 Navy http //www navy mil/view_image asp id 65790 U S Navy photo by Mass Communication Specialist 2nd Class Demetrius Kennon PD-USGov-Military-Navy M40 Field Protective Mask Naval Mobile Construction Battalion 1 Naval Construction Battalion Center Gulfport Chemical warfare training |