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There are currently eight states that have successfully detonated nuclear weapons. Five are considered to be “nuclear-weapon states” (NWS) under the terms of the Nuclear Non-Proliferation Treaty (NPT). In order of acquisition of nuclear weapons these are: the United States, Russia (successor state to the Soviet Union), the United Kingdom, France, and China. Nations that are known or believed to possess nuclear weapons are sometimes referred to as the nuclear club.

 

Countries With Nuclear Weapons

 

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