North Korea may soon seal its place in an exclusive global club after Kim Jong Un unveiled the country’s first nuclear-powered submarine under construction. ‘These incomparably revolutionary vessels must fulfill their mission as a nuclear power’s formidable deterrent that will overpower the hostile forces’ entrenched “gunboat diplomacy”‘,

North Korea has unveiled for the first time what it says is a nuclear-powered submarine under construction, a weapons system that can pose a major security threat to South Korea and the US.