About the Author
Oliver Hotham
Oliver Hotham was an NK News contributor based in Seoul, South Korea. Follow him on Twitter @oliverhotham.
News Thursday evening that South Korea would end the General Security of Military Information Agreement (GSOMIA) -- a controversial intelligence-sharing agreement with Japan -- has rocked the region, raising concerns about the future of security in Northeast Asia.
The move marks a significant escalation of a now months-long row between South Korea and Japan -- a row rooted in historical tensions but which is now increasingly impacting the global economy and trilateral cooperation on North Korea intelligence-gathering.