Having nuclear weapons 'matter of life and death' for North Korea: RIA news agency

Having nuclear weapons 'matter of life and death' for North Korea: RIA news agency  Economic Times North Korea Says Nuclear Weapons Are a 'Matter of Life and Death' and Refuses to Talk to US  Newsweek North Korea's Nuclear Tests Could Be Changing the Country's Geology  TIME North Korean mountain hosting Kim Jong-un's nuclear missile tests showing signs of exhaustion  The Independent North Korea is playing a longer-term game than the US  gulfnews.comFull coverage