GULF OF GUINEA — Chief Petty Officer Raymond Concepcion, a maritime enforcement specialist aboard the U.S. Coast Guard Cutter Thetis (WMEC-910), discussed safety procedures with a Nigerian Navy Special Boat Services member Sunday, April 14, 2019 after a joint law enforcement boarding between the U.S. Coast Guard and Nigerian Navy in the Gulf of Guinea. U.S. Coast Guard photo by Petty Officer 2nd Class Jonathan Lally