150630-M-DN141-519 ARAWA, Autonomous Region Of Bougainsville, Papua New Guinea (June 30, 2015) An MH-60S Sea Hawk helicopter from Helicopter Sea Combat Squadron (HSC) 21 returns to the Military Sealift Command hospital ship USNS Mercy (T-AH 19) from a mutual aid request with six patients to be treated aboard the ship. The helicopter transported the six passengers, including one infant, from Han Island after a mutual aid request during the second port mission of Pacific Partnership 2015 in Papua New Guinea. Pacific Partnership missions to date have provided medical care to approximately 270,000 patients and veterinary services to more than 38,000 animals. Additionally, the mission has provided critical infrastructure development to host nations through more than 180 engineering projects.(U.S. Marine Corps photo by Sgt. Valerie Eppler/Released)