180522-N-MD713-0203 NHA TRANG, Vietnam (May 22, 2018) Sailors assigned to the U.S. Navy hospital ship USNS Mercy (T-AH 19) and local Vietnamese lifeguards participate in a relay exercise during a surf lifesaving subject matter expert exchange at Nha Trang Beach in support of Pacific Partnership (PP) 2018. PP-18's mission is to work collectively with host and partner nations to enhance regional interoperability and disaster response capabilities, increase stability and security in the region and foster new and enduring friendships across the Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Cameron Pinske/Released)