North Korea’s nuclear weapons program is a response to US military threats that have escalated since the end of the Cold War.
Recent US conflict with North Korea takes place in new context. China’s rise — and the relative decline of the US — have put all the relationships in East Asia in flux. (2013)
Obama tightened the screws on North Korea. But the US has really kept the North under economic siege since the early 1950s.
The North-South border in Korea is the most militarized in the world. The media usually get things backwards when they try to explain how it got that way.