Hyun Hak-bong claims secretive state could easily launch warhead . Chilling words came in rare interview at North Korean embassy in London . People are 'peace-loving ' and do not want open war with South Korea . Communist country 'would only go nuclear in event of American strike ' Comments come as U.S. and South Korea hold last several weeks military exercises . North views manoeuvres as provocation and preparation for invasion .
Hyun Hak-bong claims secretive state could easily launch warhead . Chilling words came in rare interview at North Korean embassy in London . People are 'peace-loving ' and do not want open war with South Korea . Communist country 'would only go nuclear in event of American strike ' Comments come as U.S. and South Korea hold annual military exercises . North views manoeuvres as provocation and preparation for invasion .