191018-N-VR594-1022 APRA HARBOR, Guam (Oct. 18, 2019) Senior Chief Electricians Mate (Nuclear) Travis Radzyminski, from Curwensville, Pa., demonstrates how to use an emergency air breathing apparatus during a family day cruise aboard the Los Angeles-class fast attack submarine USS Key West (SSN 722). Key West is one of four forward-deployed submarines assigned to Commander, Submarine Squadron Fifteen out of Apra Harbor, Guam. (U.S. Navy photo by Mass Communication Specialist 2nd Class Kelsey J. Hockenberger/Released)