NEW LONDON, Conn. (May 13, 2022) Cmdr. Alan Mardegian is piped ashore following the change of command ceremony for the Los Angeles-class fast attack submarine USS San Juan (SSN 751), pierside at Naval Submarine Base New London in Groton, Connecticut. Cmdr. Mardegian relieved Cmdr. Douglas Sattler, Jr. as commanding officer of the Los-Angeles-class fast attack submarine. (U.S. Navy photo by John Narewski)