Politics 20 February 2012 Chart of the day: nuclear weapons - who has what? The number of nuclear warheads in Russia, the US and the rest. Sign up for our weekly email * Print HTML While the "international community" is focused on ensuring Iran doesn't get its hands on a nuclear weapon, today's chart of the day looks at just how well-armed some of its members are. Under the terms of the Non-Proliferation Treaty, there are officially only five "nuclear-weapon states" (China, France, Russia, the UK and the US) but four states that were not party to the treaty - India, Israel, Pakistan and North Korea - have since acquired nuclear weapons. South Africa became the first country to voluntarily give up its nuclear weapons in 1989, followed by the former Soviet republics of Belarus, Kazakhstan and Ukraine, whose warheads were transferred to Russia in 1995-96. Brazil, Argentina, Taiwan and South Korea all gave up secret nuclear weapons programmes. › Gang crime: another approach George Eaton is political editor of the New Statesman. Subscribe More Related articles As the Gaslighter-in-Chief takes office, remember: you're not going mad Donald Trump promises quick Brexit trade deal - but the pound still falls What does the end of the one-child policy mean for China's disabled population?