GROTON, Conn. (Sept. 19, 2021) The Los Angeles-class submarine USS Montpelier (SSN 765) transits the Thames River toward Naval Submarine Base New London in Groton, Conn. Montpelier and crew, operating under Submarine Squadron (SUBRON) FOUR, returned to homeport from a scheduled four-month deployment in support of the Navy's maritime strategy of supporting national security interests and maritime security operations. (U.S. Navy photo by Chief Mass Communication Specialist Joshua Karsten)