If anyone thinks North Korea would win, they're stoned off their ass.
Big difference between the Korean War and a potential Korean War II:
First Korean War, North has the Soviet Union and China on their side. In a potential second, Russia would most likely be on the US/South Korea side, and China is probably going to be neutral and not step in unless shit gets out of hand.
At the very least, it'll likely be South Korea, America, United Kingdom, France, and Japan. Even then, it wouldn't be too hard to defeat Kimmy. Germany maybe, Canada maybe, Russia maybe.
If we get a good amount of troops from every country in NATO to fight, plus some Russian and South Korean troops, it'll be like a football player fighting a 5 year old.
UPDATE: China is having talks in Seoul (capital of South Korea) regarding the situation in the Korean Peninsula. Little Kimmy better have all his fingers and limbs crossed that China decides they're gonna stay neutral and they won't come to our side, or they're even more screwed.
Meanwhile, I'll be here hoping China decides to be on our side so we can open up the can of whoopass with a bigger can opener and end this nonsense.