1. Military Highly Enriched Uranium and Plutonium Stocks in Acknowledged Nuclear Weapon States
- Author:
- David Albright and Serena Kelleher-Vergantini
- Publication Date:
- 11-2015
- Content Type:
- Special Report
- Institution:
- Institute for Science and International Security
- Abstract:
- Plutonium and highly enriched uranium (HEU), called “fissile materials,” were first produced in large quantities for use in nuclear weapons. Starting in World War II, and for over two decades afterwards, almost all the plutonium and HEU in the world was produced for these immensely destructive weapons. This production was centered almost exclusively in five states: Britain, China, France, Russia, and the United States. In the Nuclear Non-Proliferation Treaty (NPT) these five countries are designated as “nuclearweapon states” because all five had manufactured and exploded a nuclear weapon prior to January 1, 1967. To this day, they remain the only acknowledged nuclear weapon states. Although other countries possess nuclear weapons, the acknowledged states have gained a special status in international affairs. As part of that status, however, these five states also committed to work towards nuclear disarmament, in particular steps accompanied by the elimination of their own stocks of fissile material for nuclear weapons. At the end of 2014, these five states had military stocks totaling about 238 tonnes of plutonium and 1,330 tonnes of HEU, mostly weapon-grade uranium (WGU is defined as HEU enriched over 90 percent). Table 1 provides a summary of the results. Tables 2 and 3, located at the end of the report, provide official declarations or detailed estimates of each country’s military plutonium and HEU holdings. These tables provide extensive endnotes describing official declarations, other sources, and the derivation of the various estimates. In addition to aggregate totals, tables 2 and 3 provide partial information about the various types of military stocks held by these five countries, including fissile material dedicated to nuclear weapons activities and naval propulsion programs, and declared excess to defense requirements.
- Topic:
- Nuclear Weapons, Uranium, and Plutonium
- Political Geography:
- Britain, Russia, China, France, and United States of America