180821-N-ZI635-293 CAMP SHELBY, Miss. (Aug. 21, 2018) Lt. Jonathan Grimes, assigned to Naval Mobile Construction Battalion (NMCB) 133, takes patient information during mass casualty drill for the battalions' field training exercise (FTX) at Camp Shelby, Miss. FTX provides a robust training environment where Seabee forces plan and execute multiple mission essential tasks including convoy security, force protection, and camp buildup prior to deployment. (U.S. Navy photo by Mass Communication Specialist 2nd Class George M. Bell/Released)