Could Korean War II Drag in the World's Superpowers?

This article is meant to offer an answer to the following question posted on Quora [https://www.quora.com/Who-would-win-in-this-war-the-USA-the-U-K-Japan-and-South-Korea-vs-Russia-China-and-North-Korea] : > “Who would win in this war: the USA, the U.K, Japan, and South Korea vs Russia, China, and North Korea?” Without hyperbole, this has the potential to become a war to end all wars. Involving most of the world’s largest and most powerful armies and nuclear arsenals (except those of India),