190925-N-VR594-1077 APRA HARBOR, Guam (Sept. 25, 2019) Machinists Mate (Weapons) 2nd Class David Gentry, from Buckeye, Ariz., gives a tour of the torpedo room aboard the Los Angeles-class fast attack submarine USS Oklahoma City (SSN 723) during a family day cruise. Oklahoma City 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)