ATLANTIC OCEAN (May 16, 2021) Capt. Chris “Chowdah” Hill, commanding officer of the San Antonio-class amphibious transport dock ship USS Arlington (LPD 24), looks on as the ship conducts a replenishment-at-sea with the fleet replenishment oiler USNS Joshua Humphreys (T-AO 188) and the Arleigh Burke-class Guided Missile Destroyer USS Winston Churchill (DDG 81), May 16, 2021. Underway replenishments are used to transfer fuel, munitions and supplies from one ship to another while underway. (U.S. Navy photo by Mass Communication Specialist 2nd Class John D. Bellino)