170629-N-PK553-055 SANTA RITA, Guam (June 29, 2018) Los-Angeles class fast attack submarine USS Oklahoma City (SSN 723) returns to its homeport of Apra Harbor, Guam, June 29. Oklahoma City is one of four forward-deployed submarines assigned to Commander, Submarine Squadron 15. (U.S. Navy photo by Culinary Specialist Seaman Jonathan Perez)