By Chris Harris
Published on
Russia and U.S. have around 93 percent of the world’s nuclear weapons, according to estimates by the Stockholm International Peace Research Institute (SIPRI).
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However the Cold War rivals are on course to meet a 2018 deadline to reduce their stockpiles, agreed in 2010.
France and the United Kingdom are the only countries in Europe to possess nuclear weapons.
North Korea, according to SIPRI estimates, became the latest nuclear power in 2015 and is thought to possess up to 20 warheads.
China, India and Pakistan have all increased, albeit slightly, their nuclear arsenals over the last few years.