190516-N-NT795-728 SAN DIEGO (May 16, 2019) Sailors assigned to Coastal Riverine Group (CRG) 1 demonstrate takedown techniques during a combatives training session as part of tactical convoy team training at Naval Outlying Landing Field Imperial Beach. Tactical convoy teams provide security for coastal riverine forces while operating in and around Djibouti, Africa. (U.S. Navy photo by Chief Boatswain's Mate Nelson Doromal/Released)