190719-N-JD217-025 CAMP SHELBY, Miss. (July 19, 2019) U.S. Navy Reserve Seabees assigned to Naval Mobile Construction Battalion (NMCB) 14 conduct a patrol to secure an area for an air detachment during a Command Post Exercise (CPX) at Camp Shelby, Mississippi, July 18-20. NMCB-14 Seabees who participated in the three-day CPX practiced facilitating communications between the combat operation center (COC) and an air detachment. (U.S. Navy photo by Mass Communication Specialist 1st Class Jessica Dupree/Released)