NKs neighbors are Russia, China and South Korea. Russia and China tolerate NK, so NK has no reason to fight a much larger, friendly neighbor. Between North an

NKs neighbors are Russia, China and South Korea. Russia and China tolerate NK, so NK has no reason to fight a much larger, friendly neighbor. Between North and South Korea is the DMZ, a 4km wide mine field. If your tanks somehow get past that you have 28k US troops waiting for you. If the border was flat, unguarded wheat fields, I’m sure NK would have tried at some point. They don’t lack the will, just the ability. In Ukraine, Russia had the will and the ability.