JOINT BASE PEARL HARBOR-HICKAM (May 18, 2021) Cmdr. Tyler Forrest, from Linwood, New Jersey, salutes the sideboys, as he walks off the brow of the Los Angeles-class fast-attack submarine USS Columbia (SSN 771) following a change of command ceremony. Cmdr. Corey Barksdale, from Matoaca, Virginia, relieved Forrest as Columbia's commanding officer during the ceremony. (U.S. Navy photo by Mass Communication Specialist 1st Class Michael B. Zingaro)