Shortly after members of the United Nations Security Council unanimously condemned the rocket launch , North Korea responded in a statement released by its foreign ministry on April 14 , 2009 that the UN action was an " unbearable insult " , and the UN statement infringed its sovereignty and " severely debases " its people . It also decided to quit the six-party talks , saying " There is no need for the six-party talks any more . We will never again take part in such talks and will not be bound by any agreement reached at the talks . " The statement added that North Korea intended to " bolster its nuclear deterrent for self-defence in every way " and that it would restart the Yongbyon reactor . North Korea partially dismantled the reactor in 2008 as part of an international agreement in return for foreign aid and diplomatic concessions . On April 18 , Pyongyang unexpectedly announced that it would interpret sanctions and criticism levelled after the launch as " a declaration of war " and reasserted the North Korean military 's willingness to defend against " aggression " from South Korea and the United States . On April 29 , it further demanded " apology " from the U.N. Security Council and threatened with more nuclear tests and intercontinental ballistic missile tests . On 25 May , North Korea claimed that it had conducted a second nuclear test
second nuclear test
2009 North Korean nuclear test
Kwangmyŏngsŏng-2