It walked away from the Nuclear Non-Proliferation Treaty (NPT) in 2003; resisted serious negotiations within the framework of the Six-Party Talks established that year by the United States, China, Russia, South Korea, and Japan; tested nuclear explosive devices in 2006 and 2009 in breach of a global moratorium; conducted a series of increasingly provocative missile tests; ignored United Nations Security Council resolutions and sanctions; sank a South Korean navy ship and shelled one of its islands in 2010; and maintained a steady flow of belligerent rhetoric.
Elle a résisté à des négociations sérieuses dans le cadre de pourparlers à six établis cette année entre les Etats-Unis, la Chine, la Russie, la Corée du Sud et le Japon. Elle a testé ses dispositifs nucléaires explosifs en 2006 et 2009 en violation d'un moratoire mondial.