The recent claim by Kim Jong Un that North Korea plans to develop the world’s most powerful nuclear force may well have been more bravado than credible threat. But that doesn’t mean it can be ignored.

The best guess is that North Korea now has sufficient fissile material to build 45 to 55 nuclear weapons, three decades after beginning its program. The warheads would mostly have yields of around 10 to 20 kilotons, similar to the 15 kiloton bomb that destroyed Hiroshima in 1945.

But North Korea has the capacity to make devices ten times bigger. Its missile delivery systems are also advancing in leaps and bounds. The technological advance is matched in rhetoric and increasingly reckless acts, including test-firing missiles over Japan in violation of all international norms, provoking terror and risking accidental war.

The question now is how best to bring the pariah nation into the orbit of arms control negotiations and international dialogue. However remote the chances of that, the alternative risks a regional nuclear arms race.

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A history of failure

The current impasse can be traced back to 1991 and the end of the Cold War. As part of its efforts to create a viable arms control treaty with the Soviet Union, the United States removed all nuclear weapons from South Korea.

This seemed sensible at the time, especially since North Korea had pledged itself to the cornerstone Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in 1985. This commits member states to arms control and reduction, with independent observers to monitor compliance.

The faith was misplaced. From 1993, North Korea went on to trick or fool every US president and most of the international community for the next 30 years, quitting the NPT in 2003 and detonating its first nuclear explosion in 2006.

This so upset the global balance of power that all members of the UN Security Council agreed that North Korea had to stop developing nuclear warheads and associated missile delivery systems. Nine rounds of sanctions since 2006 have attempted to enforce this, to no avail.

Read full story https://theconversation.com/kim-jong-un-wants-north-korea-to-be-a-nuclear-superpower-the-real-risk-is-a-regional-arms-race-195726