NAVAL BASE GUAM (Oct. 4, 2023) Cmdr. Ilbae Kim, commanding officer of the Republic of Korea Navy Sonwonil-class submarine ROKS Jeong Ji (SS 073), looks through a periscope aboard the Los Angeles-class fast-attack submarine USS Annapolis (SSN 760) during a routine visit, Oct. 4, 2023. Annapolis is one of multiple submarines assigned to Commander, Submarine Squadron (CSS) 15. Annapolis is capable of supporting various missions, including anti-submarine warfare, anti-ship warfare, strike warfare, intelligence, surveillance, and reconnaissance. (U.S. Navy photo by Mass Communication Specialist 1st Class Justin Wolpert)