170517-N-PD309-092 CHANGI, Singapore (May 17, 2017) Cmdr. Lawrence Repass, executive officer aboard littoral combat ship USS Coronado (LCS 4), left, greets Vice Adm. Joseph Aucoin, commander, U.S. Seventh Fleet, on the flight deck of Coronado during International Maritime Defense Exhibition 2017 (IMDEX-17). IMDEX-17 is hosted by the Republic of Singapore, and is one of the largest maritime exhibitions in the Asia Pacific featuring a trade show and a series of multilateral exercises and exchanges. Twenty-seven ships from 18 navies along with chiefs of navy from nations around the globe will participate in IMDEX-17. (U.S. Navy photo by Mass Communication Specialist 3rd Class Deven Leigh Ellis/Released)