North Korea is only pursuing nuclear weapons to protect against potential invasion from the U.S. or South Korea to remove the Kim government. If the U.S. would work with the Kim government to guarantee its foothold, not only north of the 38th parallel, but potentially over all of Korea, I believe the Kim government wouldn't feel the need to possess these weapons anymore. Even if they kept the weapons, they would have no need to use them if there was not threat to their government.
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