Which countries are known to have nuclear weapons?
List of states with nuclear weapons
United States, Russia (the successor state to the Soviet Union), the United Kingdom, France, and China
There are eight sovereign states that have successfully detonated nuclear weapons.[1] Five are considered to be nuclear-weapon states (NWS) under the terms of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). In order of acquisition of nuclear weapons these are: the United States, Russia (the successor state to the Soviet Union), the United Kingdom, France, and China.