GROTON, Conn. (Aug. 21, 2021) Cmdr. Joseph Fontenot, left, salutes Capt. Lincoln Reifsteck, the presiding officer, during a change-of-command ceremony for the Los Angeles-class submarine USS Newport News (SSN 750) onboard Naval Submarine Base New London in Groton, Conn. Fontenot relieved Cmdr. David Fassel, right, as commanding officer of the Los Angeles-class submarine, whose primary mission is to provide fast-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 Mass Communication Specialist Joshua Karsten)