GROTON, Conn. (August 12, 2022) Cmdr. Robert Low, right, relieves Cmdr. Matthew Horton, left, with Submarine Squadron (SUBRON) TWELVE commander Capt. Thomas O’Donnell presiding as part of a change-of command ceremony aboard the Virginia-class attack submarine USS Delaware (SSN 791). Delaware and crew operate under SUBRON TWELVE and its 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 Mass Communication Specialist Chief Petty Officer Joshua Karsten)