180801-N-HI707-0683 NORFOLK (Aug. 1, 2018) The Commander Submarine Force and Commander Submarine Squadron 6 pennants fly from the flag staff of the Virginia-class attack submarine USS Washington (SSN 787) during a change of command ceremony in Norfolk, Va. Capt. Martin Muckian relieved Hartsfield as Commander, Submarine Squadron Six. (U.S. Navy photo by Chief Mass Communication Specialist Darryl Wood/Released)