190919-N-NT795-741 SAN DIEGO (Sept. 19, 2019) A Coastal Riverine Squadron 3 Mark VI patrol boat conducts unit level training provided by Coastal Riverine Group 1 Training and Evaluation Unit. The Coastal Riverine Force is a core Navy capability that provides port and harbor security, high value security, and maritime security operations in the coastal and inland waterways. (U.S. Navy photo by Chief Boatswain’s Mate Nelson Doromal Jr./Released)