171130-N-NT795-204 CORONADO, Calif. (Nov. 30, 2017) Vice Adm. John D. Alexander, commander, U.S. 3rd Fleet, rides aboard a MKVI patrol boat in San Diego Bay during a visit and a tour provided by Coastal Riverine Squadron (CRS) 3 at Naval Amphibious Base Coronado. CRS 3 provides a core capability to defend designated high value assets throughout the green and blue-water environment and providing deployable Adaptive Force Packages (AFP) worldwide in an integrated, joint and combined theater of operations. (U.S. Navy photo by Chief Boatswain’s Mate Nelson Doromal Jr/Released)