More than two decades after the end of the Cold War, the world’s leading powers continue not only to hold onto their nuclear weapon, but also modernize them in a sign that they will continue to be around for a long time to come.
There are nearly 4,000 nuclear weapons deployed throughout the world, ready for launch within minutes of receiving the “go” code.
Four countries control 3,970 of the weapons. The U.S. has 1,920, followed by Russia (1,600), the U.K. (160) and France (290).
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