151101-N-NT265-009 BUSAN, Republic of Korea (Nov. 1, 2015) Sailors man the rails of the Arleigh Burke-class guided-missile destroyer USS Mustin (DDG 89) while arriving in Busan, Republic of Korea. Mustin is participating in bilateral training with the Republic of Korea Navy to strengthen the U.S.-Republic of Korea alliance and improve regional security. (U.S. Navy photo by Mass Communication Specialist 2nd Class Christian Senyk/Released)