NAVAL BASE GUAM (Mar. 21, 2023) Cmdr. Daniel McNab, commanding officer of the Virginia-class fast-attack submarine USS Illinois (SSN 786) leads a tour from the Republic of Korea Navy during exercise Sea Dragon 2023, March 21. Sea Dragon is a multi-lateral anti-submarine warfare exercise which improves interoperability and strengthens relationships in the Indo-Pacific. Illinois is one of several submarines assigned to Commander, Submarine Squadron 1, homeported at Joint Base Pearl Harbor-Hickam, Hawaii. (U.S. Navy photo by Mass Communication Specialist Seaman Darek Leary)