150630-M-DN141-420 ARAWA, Autonomous Region Of Bougainville, Papua New Guinea (June 30, 2015) Navy medical personnel tend to a patient following a surgery aboard the Military Sealift Command hospital ship USNS Mercy (T-AH 19) during Pacific Partnership 2015. Mercy is on its second mission port for Pacific Partnership 2015. 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. Marine Corps photo by Sgt. Valerie Eppler/Released)