Jul 19,2013 Topics of the Month The ROK-US Alliance – 1 The ROK-US Alliance at 60 and Beyond The year 2013 marks the 60th anniversary of the ROK-US security alliance, which was officially established with the signing of the ROK-US Mutual Defense Treaty in October 1953. The number 60 carries significant meaning in Korea since it refers to the completion of one cycle of the zodiac […] Choi Kang* China , North Korea , Northeast Asia , OPCON , ROK-US Alliance , Security Architecture , SMA