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and its partners pursued “freezes.” But North Korea agreed to several freezes of its nuclear-weapons program but still found ways to violate the deals, and when caught refused international monitoring and verification. has tried diplomatic inducements, including normalization of relations, security guarantees, economic and food aid and confidence-building steps. The North Korea challenge is, as President Obama reportedly told then President-elect Donald Trump, the most dangerous and difficult security challenge he will face. North Korea has several nuclear weapons and is perfecting the missiles that are designed to deliver them.
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We now know that for much of this time Pyongyang was working to preserve and even expand its nuclear program. Some have made progress, only to be set back by North Korean perfidy, by changes in policy direction and by cautious partners and allies in the region who wanted a different approach. Administrations have tried various strategies to thwart the dangerous trajectory of the regime. military power, enabling it to unite the Korean Peninsula on its terms.
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North Korea’s isolated dictators have long believed that nuclear weapons will ensure regime survival against U.S. Why we’ve fallen short and why that’s no longer an option TIME asked six experts how we got here, why the problem is so urgent and so hard-and what China and the U.S. Over the past year, North Korean leader Kim Jong Un has accelerated his country’s rush toward nuclear weapons and intercontinental missiles, presenting President Donald Trump with an impending crisis. Ed Jones-AFP/Getty Images A pedestrian passes portraits of the late Kim Il Sung, left, and Kim Jong Il in Pyongyang on Feb.