Wed, 12/06/2023 - 18:23 Tech Insider North Korean leader Kim Jong Un at the launch of a new "tactical nuclear attack submarine" in September.KCNA via REUTERS Tags Military & Defense, north-korea, south-korea, Submarines, ballistic-missile-submarine, ballistic-missile, news-contributor, mildef-freelance Source North and South Korea are taking their missile race underwater. Here's how theiā¦