PACIFIC OCEAN (August 4, 2021) The Nimitz-class aircraft carrier USS Carl Vinson (CVN 70) approaches the Henry J. Kaiser-class fleet replenishment oiler USNS Yukon (T-AO 202) in preparation for a refueling-at-sea. The Carl Vinson Carrier Strike Group (CVCSG), led by Carrier Strike Group (CSG) 1, is deployed in support of global maritime security operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Tyler Wheaton)