Omri Walach October 21, 2021 Originally posted on Visual Capitalist’s homepage on September 30, 2021 Which Countries Have the Most Nuclear Weapons? In theory, nuclear weapon stockpiles are closely held national secrets. The leading countries have rough estimates that aren’t regularly updated, newly nuclear countries keep their capabilities vague and unclear, and Israel has never officially confirmed a nuclear weapons program. But thanks to limited disclosures, records, and leaks, we can visualize the full extent* of the world’s nuclear arsenal. This graphic uses estimated nuclear warhead inventories from the Federation of American Scientists as of August 2021. Based on these estimates, there are just nine countries with nuclear weapons in the world. Editor’s note: Exact numbers of nuclear warheads possessed by countries are closely guarded state secrets, with the FAS estimate being the closest, most-used, and most-trusted international approximation available. Nuclear Weapons, by Country The nuclear arms race has always centered around the U.S. and Russia. After the end of World...