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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 ...
Japan, South Korea and Poland [citation needed] are generally considered de facto nuclear states due to their believed ability to wield nuclear weapons within 1 to 3 years. [17] [18] [19] South Africa produced six nuclear weapons in the 1980s, but dismantled them in the early 1990s. South Africa signed the NPT in 1991.
France became a nuclear power in 1960, and French nuclear stockpiles peaked at just over 500 nuclear weapons in 1992. [1] China developed its first nuclear weapon in 1964; its nuclear stockpile increased until the early 1980s, when it stabilized at between 200 and 260. [1] India became a nuclear power in 1974, while Pakistan developed its first ...
RDS-27, 250 kiloton bomb, a 'boosted' fission bomb tested 6 November 1955. RDS-37, 3 megaton bomb, the first Soviet two-stage hydrogen bomb, tested 22 November 1955. RDS-220 Tsar Bomba an extremely large three stage bomb, initially designed as a 100-megaton-bomb, but was scaled down to 50 megatons for testing.
The nuclear arms race was an arms race competition for supremacy in nuclear warfare between the United States, the Soviet Union, and their respective allies during the Cold War. During this same period, in addition to the American and Soviet nuclear stockpiles, other countries developed nuclear weapons, though no other country engaged in ...
Nuclear weapons tests are experiments carried out to determine the performance, yield, and effects of nuclear weapons. Such tests have resulted until 2020 in up to 2.4 million people dying from its global fallout. Testing nuclear weapons offers practical information about how the weapons function, how detonations are affected by different ...
e. France is one of the five "Nuclear Weapons States" under the Treaty on the Non-Proliferation of Nuclear Weapons, but is not known to possess or develop any chemical or biological weapons. [4][5] France is the only member of the European Union to possess independent (non-NATO) nuclear weapons. France was the fourth country to test an ...
Due to reduction in nuclear weapons stockpiles, a large amount of former weapons uranium was released for use in civilian nuclear reactors. As a result, starting in 1990, a significant portion of uranium nuclear power requirements were supplied by former weapons uranium, rather than newly mined uranium.