No. But they still have a nuclear arsenal that can destroy the planet 5 times over. They’ve also built up their Navy in recent years and continue to funnel weapons to Iran. MOscow has made it quite clear that any overt military action against Iran would trigger a military response from Moscow. How does the saying go about the friend to my enemy???
As to the Korean Peninsula, we should not be naive. This is not an issue amongst Koreans. And if there is an invasion, there will be a military response from the West. Such provacative actions by Pyongyang doesn’t just threaten Koreans. It threatens the security of the Pacific Rim Region-a region that we have deep economic ties to. Adopting a isolationist attitude toward the situation ignores political reality; especially since the Pacific Rim owns so much of our debt!