South Korea's top military officer held talks with the new commander of the U.S. Pacific Fleet on Thursday on ways to boost the allies' combined defense readiness, the Joint Chiefs of Staff (JCS) said. JCS Chairman Adm. Kim Myung-soo met US Adm. Stephen Koehler at the headquarters of the Navy's Fleet Command in Busan, 320 kilometers southeast of Seoul, according to the JCS. The two admirals were briefe.