200512-N-KO930-1103 PACIFIC OCEAN (April 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 aboard 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 Olivia Banmally Nichols/Released)