170727-N-KW679-0068 CARIBBEAN SEA (July 27, 2017) Navy divers assigned to Mobile Diving Salvage Unit (MDSU) 1, practice diver familiarization techniques in the Caribbean Sea. MDSU-1 is deployed, along with troops from several services, to conduct subject matter expert exchanges during Southern Partnership Station (SPS) 17. SPS-17 is a U.S. Navy deployment executed by U.S. Naval Forces Southern Command and U.S. 4th Fleet, that focuses on subject matter expert exchanges with partner nation militaries and security forces in Central and South America. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kristen Cheyenne Yarber/Released)