Earlier this week, the foreign ministers of South Korea and Japan met in China in an attempt to bridge the differences between the two countries. But the negotiations failed. This morning South Korea responded to Japan’s latest move by refusing to renew the General Security of Military Information Agreement (GSOMIA). This treaty between Japan and South Korea, which was due to be renewed today, facilitates the sharing of intelligence about North Korea’s missile and nuclear programs. But the South Korean government announced it would not renew the agreement, following a decision taken by the country’ National Security Council. The country’s President, Moon Jae-in, has agreed with the decision. A South Korean government spokesman said South Korea had determined that maintaining “an agreement we signed with the aim of exchanging military information which is sensitive to security […] would not serve our national interest”.

Japan called South Korea’s decision to scrap GSOMIA “extremely regrettable” and said that it “completely misreads the security situation” in the region. It added that it would continue to cooperate with South Korea “where cooperation is necessary”. Late last night, Tokyo summoned the South Korean ambassador to Japan to voice its disapproval of Seoul’s decision. Meanwhile there has been no response from the United States government, which was the architect of GSOMIA in 2016. Washington worked closely with the two countries for over 6 years to convince them to agree to exchange intelligence, despite their mutual animosity. American observers have warned that the termination of GSOMIA “threatens real-time information sharing between the United States, Japan and South Korea to monitor North Korean nuclear activity”.