141008-N-SD120-045 FORT HUNTER LIGGETT, Calif. (October 08, 2014) Seabees assigned to the convoy security element for Naval Mobile Construction Battalion (NMCB) 5 prepare their mine resistant ambush protected (MRAP) vehicles for the next day�s convoys during the battalion�s field training exercise (FTX) on Fort Hunter Liggett. Using realistic scenarios in a field environment, NMCB 5 is being evaluated by Naval Construction Group (NCG) 1 on the final FTX in preparation for a deployment. The exercise challenges the battalion's command and control functions while maintaining the camp, building structures and bridges, and defending the camp and construction projects. Seabee battalions perform contingency construction, humanitarian aid, and disaster recovery assistance. (U.S. Navy Photo by Mass Communication Specialist 1st Class John P. Curtis/Released)