171016-N-NT795-933 SAN DIEGO (Oct. 16, 2017) Sailors assigned to Coastal Riverine Squadron (CRS) 3 are underway aboard a Mark VI patrol boat during navigational check rides conducted by Coastal Riverine Group (CRG) 1 Training and Evaluation Unit in San Diego, Calif. CRG-1 provides a core capability to defend designated high value assets throughout the green and blue-water environment and providing deployable adaptive force packages worldwide in an integrated, joint and combined theater of operations. (U.S. Navy photo by Chief Boatswain’s Mate Nelson Doromal Jr./Released)