190131-N-TQ980-004 GROTON, Conn. (Jan. 31, 2019) The Virginia-class attack submarine USS North Dakota (SSN 784) transits the Thames River to return to homeport at Naval Submarine Base New London in Groton, Connecticut. North Dakota’s return marks the successful completion of a six-month deployment to the European Command area of responsibility. (U.S. Navy photo by Chief Boatswain's Mate Michael Santiago/Released)