190620-N-TB148-621 BUSAN, Republic of Korea (June 20, 2019) Sailors from the U.S. and Republic of Korea (ROK) navies participate in a biannual combined concert between the ROK Fleet Navy Band and U.S. 7th Fleet Band. The concert was performed in commemoration of the 69th anniversary of the Battle of Korea Strait, the first naval battle of the Korean War. (U.S. Navy photo by Mass Communication Specialist 2nd Class William Carlisle/Released)