North Korea releases stamps celebrating 'perfecting the nuclear forces' after the test-launch of Hwasong-15 missile

North Korea has released a set of postage stamps which celebrate a nuclear launch earlier this month - even though the missile broke apart.  Officials said the Hwasong-15 intercontinental ballistic missile would be powerful enough to reach the U.S. mainland. But the weapon broke up as it re-entered Earth's atmosphere, flying 600 miles before splashing down in waters near Japan. The commemorative stamps show the missile launching into space as well as the country's leader Kim Jong-un inspecting the military hardware.

Officials said that the Hwasong-15 missile was 'significantly more' powerful than its predecessor. Despite the break, the launch of the ICBM was celebrated with a public rally and fireworks in Pyongyang.