191210-N-VR594-1092 APRA HARBOR, Guam (Dec. 10, 2019) The Los Angeles-class fast attack submarine USS Key West (SSN 722) prepares to moor to the Lewis and Clark-class dry cargo and ammunition ship USNS Richard E. Byrd during a mobile logistics demonstration. The demonstration is designed to evaluate the supply ship’s ability to sustain submarine operations in an expeditionary setting. Key West is one of four forward-deployed submarines assigned to Commander, Submarine Squadron Fifteen out of Polaris Point, Guam. (U.S. Navy photo by Mass Communication Specialist 2nd Class Kelsey J. Hockenberger/Released)