200512-N-BC190-1004 PACIFIC OCEAN (May 12, 2020) An MH-60S Sea Hawk helicopter, from the �Screamin� Indians� of Helicopter Sea Combat Squadron (HSC) 6, conducts a vertical replenishment-at-sea with the aircraft carrier USS Nimitz (CVN 68). The Nimitz Carrier Strike Group is underway conducting a composite unit training exercise (COMPTUEX). COMPTUEX is an intensive exercise designed to fully integrate units of the carrier strike group, while testing a strike group's ability as a whole to carry out sustained combat operations from the sea. (U.S. Navy photo by Mass Communication Specialist 3rd Class Sarah Christoph/Released)