180125-N-YN937-110 VIRGINIA BEACH, Va. (Jan. 25, 2018) Senior Chief Mineman Mikael Nissen, left, assigned to Mobile Diving Salvage Unit (MDSU) 2, explains functions of a Mark 18 Mod. 2 unmanned underwater vehicle to Todd L. Schafer, executive director and director of staff, U.S. Pacific Fleet, during Schafer’s visit with Navy Expeditionary Combat Command (NECC). NECC enables Navy Expeditionary Combat Forces to execute combat, combat support, and combat service support missions across the full spectrum of naval, joint, and combined operations which enable access from the sea and freedom of action throughout the sea-to-shore and inland operating environments. (U.S. Navy photo by Mass Communication Specialist 3rd Class Alan Lewis/Released)