This report provides background information on the nuclear negotiations over North Korea's nuclear weapons program. Since August 2003, negotiations over North Korea's nuclear weapons programs have involved six governments: the United States, North Korea, China, South Korea, Japan, and Russia.

This report summarizes what is known from open sources about the North Korean nuclear weapons program--including weapons-usable fissile material and warhead estimates--and assesses current developments in achieving denuclearization.

This report provides background information on the nuclear negotiations over North Korea's nuclear weapons program. Since August 2003, negotiations over North Korea's nuclear weapons programs have involved six governments: the United States, North Korea, China, South Korea, Japan, and Russia.

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This report describes and assesses U.S. aid programs to North Korea, including the controversies surrounding the programs, their relationship to the larger debate over strategy and objectives toward the DPRK, and policy options.

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In October 2002, the United States confronted North Korea about its alleged clandestine uranium enrichment program. Soon after, the Agreed Framework collapsed, North Korea expelled international inspectors, and withdrew from the Nuclear Nonproliferation Treaty (NPT). U.S. intelligence officials claimed Pakistan was a key supplier of uranium enrichment technology to North Korea, and some media reports suggested that Pakistan had exchanged centrifuge enrichment technology for North Korean help in developing longer range missiles.