A US Navy (USN) MH-60S Sea Hawk helicopter assigned to Helicopter Sea Combat Squadron 25 (HSC-25) delivers supplies to the flight deck aboard the USN Military Sealift Command (MSC), Hospital Ship, USNS MERCY (T-AH 19), during a Replenishment at Sea (RAS) evolution with the USN MSC Mars Class: Combat Stores Ship, USNS CONCORD (T- AFS 5). The USNS MERCY is currently underway in the Pacific Ocean, conducting a scheduled five-month deployment to deliver aid and humanitarian assistance to the Pacific Islands and Southeast Asia