Cmdr. Jon Quimby, left, relieves Capt. Michael Delaney as commanding officer of the Virginia-class fast-attack submarine Pre-Commissioning Unit (PCU) Montana (SSN 794) during a change of command ceremony at Naval Station Norfolk, July 16, 2021. The change of command ceremony is a time-honored tradition that signifies a total transfer of responsibility, authority and accountability for the command. (U.S. Navy photo by Mass Communication Specialist 1st Class Alfred Coffield)