191021-N-NT795-087 SAN DIEGO (Oct. 21, 2019) Sailors assigned to Coastal Riverine Squadron (CRS) 3 operate underway aboard Mark VI patrol boats during night anchoring and towing exercises as part of 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 capabilities in coastal and inland waterways. (U.S. Navy photo by Chief Boatswain’s Mate Nelson Doromal Jr./Released)