190925-N-VR594-1036 APRA HARBOR, Guam (Sept. 25, 2019) Operations Specialist 2nd Class Robert Hall, assigned to Marianas Island Range Complex (MIRCOPS) Joint Region Marianas, peers through a periscope 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)