191017-N-NT795-317 SAN CLEMENTE ISLAND, Calif. (Oct. 17, 2019) Sailors assigned to Coastal Riverine Squadron 3 conduct live-fire exercises aboard a Mark VI patrol boat as part of unit level training. 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)