Phase I
- 1956: The Soviet Union begins training North Korean scientists and engineers, giving them “basic knowledge” to initiate a nuclear program.
- 1958: The U.S. deploys nuclear armed Honest John missiles and 280mm atomic cannons to South Korea.
- 1959: North Korea and the USSR sign a nuclear cooperation agreement.
- 1962: The Yongbyon Nuclear Scientific Research Center opens.
- 1965: The Yongbyon IRT-2000 research reactor reaches a power rating of 2MW.
- 1974: The Yongbyon IRT-2000 research reactor reaches a power rating of 4MW.
- Between the late 1970's and early 80's North Korea begins uranium mining operations at various locations near Sunchon and Pyongsan.
Read more about this topic: Timeline Of North Korea Nuclear Program
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