160910-N-QW941-169 PACIFIC OCEAN (Sept. 10, 2016) An SA-330J Puma helicopter delivers supplies aboard hospital ship USNS Mercy (T-AH 19), during a vertical replenishment, as dry cargo ship USNS Matthew Perry (T-AKE 9) is seen refueling Mercy in the reflection of the flight deck tower window, during a replenishment at sea. Deployed in support of Pacific Partnership 2016, Mercy is sailing to her homeport of San Diego. (U.S. Navy photo by Mass Communication Specialist 3rd Class Trevor Kohlrus/Released)