North Korea boasted on Tuesday that it is one of only a handful of countries in the world to field nuclear weapons and advanced missiles and the only one standing up to the United States by "shaking the world" with missile tests.
International tension has been rising over a recent series of North Korean ballistic missile tests, actions long banned by the U.N. Security Council. January was a record month of such tests, with at least seven launches, including a new type of "hypersonic missile" able to manoeuvre at high speed.
