GROTON, Conn. (May 14, 2021) Capt. John Stafford, incoming commodore of Submarine Squadron (SUBRON) 4, delivers remarks during a change of command ceremony at Flasher WWII Memorial in Groton, Conn., May 14, 2021. Stafford relieved Capt. Andrew Miller, right, during the ceremony. SUBRON FOUR's primary mission is to provide attack submarines that are ready, willing, and able to meet the unique challenges of undersea combat and deployed operations in unforgiving environments across the globe. (U.S. Navy photo by Chief Petty Officer Joshua Karsten)