North Korea’s Decades-Long Path to a Nuclear Arsenal Culminates in 2006 Test
North Korea detonated its first underground nuclear device on October 9 2006 at Punggye-ri, joining the world’s nuclear-armed states.
On October 9 2006 North Korea exploded an underground nuclear device at the Punggye-ri test site, becoming the ninth nation to possess nuclear weapons and the first to conduct a live test since Pakistan in 1998. The event prompted UN Security Council Resolution 1718 and a suite of international sanctions, yet the regime persisted, eventually abandoning the 1994 Agreed Framework and restarting its nuclear facilities. The nuclear drive began in the 1950s with Soviet assistance to set up a civilian research program, later expanding into a plutonium-producing complex at Yongbyon that became operational in 1986.
Despite severe economic hardship and near-total isolation, North Korea has performed five additional tests, developed more powerful warheads and advanced ballistic missiles that can threaten the United States. Today its arsenal is estimated in the hundreds, presenting a durable challenge to regional and global security.
Why it matters
North Korea’s nuclear capability threatens regional stability and poses a direct security challenge to the United States and its allies.
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