GROTON, Conn. (April 6, 2021) The Virginia-class attack submarine USS Colorado (SSN 788) makes its way up the Thames River and past the City of New London returning to Submarine Base New London, April 6, 2021. Colorado is the 15th Virginia-class attack submarine and is the fourth United States ship to be named for The Centennial State. (U.S. Navy photo by John Narewski)