LONG BEACH, Calif., (Nov. 12, 2020) Chief Aviation Boatswain's Mate (Aircraft Handling) Conrad Lake, training officer assigned to Maritime Expeditionary Security Squadron (MSRON) 11 briefs Lt. Cmdr. Trisha Kelly, chief staff officer and executive officer of MSRON 11 aboard a 34-foot Sea Ark patrol boat during a navigation check ride exercise off the coast of Long Beach, Calif. The Maritime Expeditionary Security Force is a core Navy capability that provides port and harbor security, high value asset security, and maritime security in the coastal and inland waterways. (U.S. Navy photo by Chief Boatswain's Mate Nelson Doromal Jr.)