Seabees assigned to Naval Mobile Construction Battalion (NMCB) 5 play card games during an evening break from operations at the battalion’s field training exercise (FTX). Using realistic scenarios in a field environment, NMCB 5 is being evaluated by Naval Construction Group (NCG) 1 on the final field training exercise (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)