PUBLISHED : Sunday, 11 January, 2004, 12:00am
UPDATED : Sunday, 11 January, 2004, 12:00am

Recognised nuclear weapon states*

China: About 300 strategic warheads

France: Fewer than 500 warheads

Russia: 6,094 deployed warheads

Britain: Fewer than 200 warheads

United States: 7,295 deployed warheads

*Arms Control Association 2001 figures

Unrecognised nuclear weapon states**

India: Not a member. First tested a device in 1974 and declared itself a nuclear power in 1998. The Pentagon believes it has components that could be assembled and deployed within a week. Estimated warheads 45 to 95

Pakistan: Not a member. Declared itself a nuclear power in 1998. The Pentagon believes its weapons are in component form and could be assembled quickly. Estimated warheads 30 to 50

Israel: Not a member. With French help and US acquiescence, it has produced an advanced arsenal of 75 to 125 warheads. Officials are ambiguous about any weapons programme, simply stating Israel would not be the first to introduce nuclear weapons in the Middle East

**Cuba is the fourth non-member of the treaty

On the edge

North Korea: Signed the treaty in 1985. Last year it announced withdrawal, expelled United Nations weapons inspectors and said it was on the way to producing nuclear weapons. Last week it offered to refrain from testing and producing weapons as a US delegation visited the Yongbyon nuclear complex

Iran: A member in good standing of the treaty. However, the US believes it is pursuing a weapons programme. In September Iran agreed to sign an additional protocol to the treaty

Iraq: Its nuclear programme went undetected until 1991. Last year the US invaded in the belief it was hiding capability to make weapons of mass destruction. None have been found

Libya: A member in good standing. Last month Libya announced it would dismantle its covert weapons programmes and opened the way for inspections