SEA OF JAPAN (Sept. 29, 2022) Republic of Korea navy (ROKN) destroyer ROKS Gwanggaeto the Great (DDH 971), ROKN destroyer ROKS Seoae Ryu Seong-ryong (DDG 993), and the guided-missile cruiser USS Chancellorsville (CG 62), steam in formation in the Sea of Japan. The Ronald Reagan Carrier Strike Group (CSG) is participating with the ROK Navy in Maritime Counter Special Operations Exercise (MCSOFEX) to strengthen interoperability and training. The U.S. routinely conducts CSG operations in the waters around the ROK to exercise maritime maneuvers, strengthen the U.S.-ROK alliance, and improve regional security. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael B. Jarmiolowski)