north korea tested its nuclear weapons on may 25, 2009.
where did north korea test its nuclear weapons?
may 25, 2009
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north korea was a party to the nuclear non-proliferation treaty, but announced a withdrawal on january 10, 2003, after the united states accused it of having a secret uranium enrichment program and cut off energy assistance under the 1994 agreed framework. in february 2005, north korea claimed to possess functional nuclear weapons, though their lack of a test at the time led many experts to doubt the claim. in october 2006, north korea stated that, in response to growing intimidation by the united states, it would conduct a nuclear test to confirm its nuclear status. north korea reported a successful nuclear test on october 9, 2006 (see 2006 north korean nuclear test). most u.s. intelligence officials believed that the test was probably only partially successful with a yield of less than a kiloton. north korea conducted a second, higher yield test on 25 may 2009 (see 2009 north korean nuclear test) and a third test with still higher yield on 12 february 2013 (see 2013 north korean nuclear test). north korea claimed to have conducted its first hydrogen-bomb test on 5 january 2016, though measurements of seismic disturbances indicate that the detonation was not consistent with a hydrogen bomb. on 3 september 2017, north korea detonated a device which caused a magnitude 6.1 tremor, consistent with a low-powered thermonuclear detonation; norsar estimates the yield at 250 kilotons of tnt. in 2018, north korea announced a halt in nuclear weapons tests and made a conditional commitment to denuclearisation of the korean peninsula.
list of states with nuclear weapons