180730-N-GX781-0077 NAVAL STATION GUANTANAMO BAY, Cuba (July 30, 2018) Capt. Brian J. Diebold, commodore of Destroyer Squadron (DESRON) 40, briefs Sailors aboard the expeditionary fast transport vessel USNS Spearhead (T-EPF 1) during a scheduled port visit to Naval Station Guantanamo Bay, Cuba. Spearhead is on deployment to support Southern Partnership Station, a U.S. Southern Command-sponsored and U.S. Naval Forces Southern Command/U.S. 4th Fleet-conducted annual deployment focused on subject matter expert exchanges and building partner capacity in a variety of disciplines including medicine, construction and dive operations in the Caribbean, Central and South America. (U.S. Navy photo by Mass Communication Specialist 3rd Class Colbey Livingston/Released)