On September 12, Monday, the Sejong Institute held ROK-Japan Policy Dialogue in Hiroshima. With the purposes of seeking directions for bilateral security cooperation, reviewing mid-to-long term policies against one another, and establishing a new ROK-Japan policy network pursuant to the political changes in Japan, this forum dealt with the comfort women issue, North Korea’s byungjin line, and the political landscape surrounding Korean Peninsula after the decision to deploy THAAD among twenty participants from the academic community and governments from both sides.