191220-N-VR594-1071 APRA HARBOR, Guam (Dec. 20, 2019) The Los Angeles-class fast attack submarine USS Topeka (SSN 754) transits Apra Harbor while preparing to moor in its homeport in Guam following a deployment. Topeka 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)