180801-N-HI707-0668 NORFOLK (Aug. 1, 2018) Capt. Martin Muckian, commander of Submarine Squadron 6, crosses the brow the Virginia-class fast-attack submarine USS Washington (SSN 787) at the conclusion of the change of command ceremony in Norfolk, Va. Capt. Muckian relieved Capt. Carl Hartsfield as Commander, Submarine Squadron Six. (U.S. Navy photo by Chief Mass Communication Specialist Darryl Wood/Released)