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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 of the former Soviet Union ), the United Kingdom, France, and China. Of these, the three NATO members, the United ...
Mark 1 – "Little Boy" gun-type uranium weapon (used against Hiroshima). (13–18 kilotons, 1945–1950) Mark 2 – "Thin Man" plutonium gun design—cancelled in 1944. Implosion Mark 2 – Another Manhattan Project plutonium implosion weapon, a hollow pit implosion design, was also sometimes referred to as Mark 2. Also cancelled 1944.
South Africa successfully built six nuclear weapons in the 1980s, but dismantled all of them in the early 1990s, shortly before the fall of the apartheid system. [23] So far it is the only nuclear-capable country to give up nuclear weapons, although several members of the Soviet Union did so during the collapse of the Soviet regime. North Korea ...
Raduga (#121, October 20, 1961, at Novaya Zemlya) – one test, with a R-13 rocket launch. Tyulpan (#164, September 8, 1962, at Novaya Zemlya) – one test, with R-14 rockets launched from Chita. Operation K (1961 and 1962, at Sary-Shagan) – five tests, at high altitude, with rockets launched from Kapustin Yar.
A nuclear weapon[ a] is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb ), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter .
e. Nuclear warfare, also known as atomic warfare, is a military conflict or prepared political strategy that deploys nuclear weaponry. Nuclear weapons are weapons of mass destruction; in contrast to conventional warfare, nuclear warfare can produce destruction in a much shorter time and can have a long-lasting radiological result.
Nuclear weapons testing by country (9 C, 1 P) C. Nuclear weapons of Canada (8 P) Nuclear weapons of the People's Republic of China (1 C, 5 P) F.
All the non-Russian former Soviet bloc countries with nuclear weapons - Belarus, Ukraine, and Kazakhstan - transferred their warheads to Russia by 1996. South Africa had an active program to develop uranium-based nuclear weapons but dismantled its nuclear weapon program in the 1990s. [86]