Kazakhstan, the Requisite Model and Mediator to North Korean Denuclearization

... their nuclear warheads. With help from the United States, the Semipalatinsk testing site was destroyed in 2000. Since then, Kazakhstan has also been incredibly active in the non-proliferation multilateral regime. It joined the Nonproliferation Treaty ... ... (CTBT) in 2002, and became party to the Additional Protocol of the International Atomic Energy Agency (IAEA) in 2004 . The DPRK began to pursue nuclear weapons in 1963, but their requests for help in this endeavor were denied by both China and the Soviet Union. Soviet scientists ...