191017-N-NT795-197 SAN DIEGO (Oct. 17, 2019) Quartermaster 1st Class Troy Wilson, from New York, assigned to Coastal Riverine Squadron (CRS) 3, mans the M2A1 .50-caliber machine gun aboard a Mark VI patrol boat as it transits outbound in San Diego Bay during unit level training provided by Coastal Riverine Group (CRG) 1 Training and Evaluation Unit. The Coastal Riverine Force is a core Navy capability that provides port and harbor security, high value asset security, and maritime security operation in the coastal and inland waterways. (U.S. Navy photo by Chief Boatswain’s Mate Nelson Doromal Jr./Released)