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Nuclear Non-Proliferation Treaty
North Korea joins the international Nuclear Non-Proliferation Treaty, barring the country from producing nuclear weapons. -
International Atomic Energy Agency (IAEA)
International Atomic Energy Agency accuses North Korea of violating the Nuclear Non-Proliferation Treaty and demands inspectors be given access to nuclear waste storage sites. North Korea threatens to quit Treaty. -
Test Fire
North Korea test-fires a medium-range Rodong ballistic missile into the Sea of Japan. -
Agreed Framework
North Korea and the US sign an Agreed Framework under which Pyongyang commits to freezing its nuclear program in return for heavy fuel oil and two light-water nuclear reactors. -
Missile
North Korea fires its first long-range missile -
End of NPT
North Korea withdraws from Nuclear Non-Proliferation Treaty (NPT) -
Self Defense
North Korea admits publicly for the first time that it has produced nuclear weapons for "self defence". -
Underground Testing
North Korea conducts first underground nuclear test -
Missile testing
North Korea test fires seven missiles including a long-range Taepodong-2 missile, which crashes shortly after take-off despite it reportedly having the capability to hit the US. -
Cutting ties with South Korea
North Korea says it is scrapping all military and political deals with the South, accusing it of "hostile intent". -
Missile Fires
Tension rises in war of words with US over North Korean threat to fire ballistic missiles near US Pacific territory of Guam. China announces it plans to implement the UN sanctions against North Korea agreed earlier this month, banning imports of coal, minerals and sea food. -
Missile Fires
Pyongyang test fires a long-range missile into the Sea of Japan, with some experts stating the missile could potentially reach Alaska.