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The prohibition on testing of nuclear weapons

No state engaged in conduct in 2020 that contravened the prohibition on testing. North Korea is the only state that is known to have engaged in explosive nuclear testing since 1998, with its last test detonation occurring in September 2017.

NTB 8 Sk Q00wk Iys 1300
Photo: Kcna/EPA/NTB
Compliance Compability 3