Kim Jong-eun's New Year's Day address signaled a willingness to ease tensions with South Korea and focus on economic development, but how credible is this message? Project on Managing the Atom Associate and MIT Stanton Nuclear Security Junior Faculty Fellow John Park analyzes the address in an HKS PolicyCast.

John S. Park, Stanton Nuclear Security Junior Faculty Fellow at the Massachusetts Institute of Technology and Project on Managing the Atom Associate, argues that cooperation between North Korea and Iran has been a critical—yet underexamined—enabler of North Korea's recent success. He concludes that the time has come for the United States to view the two previously independent missile programs as two sides of the same coin and recommends strategies for disrupting the procurement channels between Iran and North Korea.

This chapter examines the relationship between security assurances and North Korean nuclear decision-making by focusing on four key areas: key geopolitical shocks that had a major impact on the North Korean regime; main sources of security assurances for North Korea over its history; this volume's hypotheses on security assurances based on how North Korea reacted to geopolitical shocks; and conditions under which security assurances may be most effective in dealing with North Korea in the future.

John Park, a senior research associate at the U.S. Institute of Peace and currently a visiting fellow with the Belfer Center's International Security Program/Project on Managing the Atom, recently sat down with for a one-on-one interview where he talked about his work with the Center and his contributions to the Seoul Nuclear Security Summit.

John Park, research fellow with the Belfer Center's Project on Managing the Atom/International Security Program, is interviewed by CNN, NPR, and other media about the regional and global impact of the death of North Korea's Kim Jong-il.

John Park, a senior program officer who directs USIP's Korea Working Group, analyzes the key policy issues arising from the sudden death of North Korean leader Kim Jong-il on December 17.

"Amid setbacks and chronic challenges in almost every major region, Washington views South Korea as a linchpin on a global scale. From hosting the G20 summit in 2010 to preparing to host the next Nuclear Security Summit in 2012, South Korea has been establishing itself as a global partner in addressing common challenges, ranging from rebalancing the international economy to preventing the use of nuclear materials for terrorist attacks. For President Lee, the state visit is an important opportunity to demonstrate South Korea’s unique role as a bridge between the developed and developing countries."

On September 28, North Korean state media announced that Kim Jong-il's third son, Kim Jong-eun, was promoted to the rank of four-star general just prior to the opening of the Workers' Party of Korea conference. Kim Jong-eun was later named vice chairman of the Party's Central Military Commission at the conference. These important developments follow the late August meeting between Chinese President Hu Jintao and North Korean leader Kim Jong-il in Changchun, near the Sino-DPRK border, which appears to have cleared the way for this Party conference. After the meeting, both countries' state media reported the leaders' support for the rising generation of the Party — a clear reference to Kim Jong-eun.

"While few observers take North Korea's threat of an all-out war seriously, many experts are concerned that the sinking of the Cheonan may be indicative of a North Korea that is emboldened by its perception of itself as a nuclear power that can now carry out limited strikes without fear of large-scale retaliation."

"Many in South Korea have already reached their own conclusion — the Cheonan incident is a stark reminder that North Korea remains a clear and present danger. A growing South Korean view is that more than a decade of nuclear drama, food shortages, starvation, borderline economic collapse, and currency reform debacles, followed by bailouts from progressive South Korean governments and the Communist Party of China has made the international community complacent about the direct military threat that North Korea poses. The Cheonan is a wake-up call."