JOINT BASE PEARL HARBOR-HICKAM, Japan (Jan. 7, 2022) Cmdr. Andrew Domina relieves Cmdr. John Nilles as commanding officer of the Los Angeles-class fast-attack submarine USS Springfield (SSN 761) at a change of command ceremony on the submarine piers at Joint Base Pearl Harbor-Hickam. (U.S. Navy photo by Lori Cravalho)