150708-N-HE318-058 RABAUL, Papua New Guinea (July 8, 2015) Navy surgeons Lt. Charles Smark, right, and Cmdr. Eric Harris perform orthopedic surgery on a patient aboard the Military Sealift Command hospital ship USNS Mercy (T-AH 19) during Pacific Partnership 2015. Mercy is in Papua New Guinea for its second mission port of Pacific Partnership. Pacific Partnership is in its tenth iteration and is the largest annual multilateral humanitarian assistance and disaster relief preparedness mission conducted in the Indo-Asia-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class William McCann/Released)