The United Nations Security Council unanimously passed Res. 1874 on June 12, 2009, in response to North Korea's second nuclear test. The resolution puts in place a series of sanctions on North Korea's arms sales, luxury goods, and financial transactions related to its weapons programs, and calls upon states to inspect North Korean vessels suspected of carrying such shipments. This report summarizes and analyzes Res. 1874.

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 updates earlier information concerning North Korea's ballistic missile development and that country's technological missile-launch capabilities.

This report summarizes the U.S. assistance to North Korea.

This report discusses the possibility of removing North Korea from the U.S. terrorism list. It includes background on U.S. negotiations with North Korea, various terrorist state designations, the process and rationale for adding or removing countries from the list, and other related information.