GULFPORT, Mississippi (January 18, 2018) From the left, Engineering Aide 1st Class Joseph St. Romain, from Denham Springs, Louisiana, briefs the status of the tactical operations board to Senior Chief Utilitesman Brain Zastrow, from Florissant, Missouri, during the Naval Mobile Construction Battalion (NMCB) 1 Command Post Exercise on board Naval Construction Battalion Center Gulfport, Mississippi on January 18, 2018. The exercise tests NMCB 1’s command and control, communications and decision making capabilities through real-world combat scenarios and simulated training events. (U.S. Navy photo by Mass Communication Specialist 3rd Class Alexa Trafton)