VERACRUZ, Mexico (July 22, 2010) Navy Diver 2nd Class Troy Crowder, assigned to company 2-6, Mobile Diving and Salvage Unit (MDSU) 2, uses hand signals to communicate with a Mexican navy diver during a salvage recovery exercise with the Military Sealift Command rescue and salvage ship USNS Grasp (T-ARS 51). MDSU-2 is participating in Navy Diver-Southern Partnership Station (ND-SPS), a multinational partnership engagement designed to increase interoperability and partner nation capacity through diving operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Chris Lussier/Released)