180713-N-TB148-209 SEOUL, Republic of Korea (July 13, 2018) Secretary of the Navy Richard V. Spencer speaks with Republic of Korea (ROK) Adm. Um, Hyun-sung, ROK Chief of Naval Operations, during an office call in Seoul. Spencer’s visit highlights the ironclad partnership between the U.S. and ROK Navies and is part of a broader visit to the Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class William Carlisle/Released)