151201-N-AD372-113 BUSAN, Republic of Korea, (Dec. 1, 2015) Rear Adm. Bill Byrne, commander of U.S. Naval Forces Korea, and Rear Adm. Han, Dong-Jin, chief of staff for Commander, Republic of Korea (ROK) Fleet, deliver opening remarks at the second U.S. and ROK Anti-Submarine Warfare (ASW), working group conference in Busan. The working group conference brought together senior naval leaders from both nations to discuss ASW operations, capabilities and strategic dialogue between the two maritime partners.