Status of World Nuclear Forces
Courtesy of Hans Kristensen and the Federation of American Scientists.
19 years after fall of the Soviet Union and the end of the Cold War, the world's combined stockpile of nuclear weapons remains at a very high level: approximately 22,300. 95% of these weapons are possessed by the U.S. and Russia.
7,900 nuclear warheads are now considered deployed and operational (ready for immediate use). 7275 of these warheads reside in the nuclear arsenals of the U.S and Russia.
A total of approximately 2,000 U.S. and Russian strategic nuclear warheads are kept on high alert, quick-launch status. They are mounted on long-range land and sea-based ballistic missiles, and kept ready to launch with only a few minutes warning. They can reach their targets anywhere on Earth in 30 minutes or less.
The exact number of nuclear weapons in each country's possession is a closely held national secret. Despite this limitation, however, publicly available information and occasional leaks make it possible to make best estimates about the size and composition of the national nuclear weapon stockpiles:
Status of World Nuclear Forces 2010 *