On December 19, 2003, Libya announced it would dismantle its weapons of mass destruction (WMD) and ballistic missile programs. Since then, U.S., British, and international officials have inspected and removed or destroyed key components of those programs, and Libya has provided valuable information, particularly about foreign suppliers. Libya’s WMD disarmament is a critical step towards reintegration into the world community, and a necessary but probably not sufficient prerequisite for lifting U.S. sanctions.