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Nuclear disarmament refers to both the act of reducing or eliminating nuclear weapons and to the end state of a nuclear-free world, in which nuclear weapons are eliminated. Beginning with the 1963 Partial Test Ban Treaty and continuing through the 1996 Comprehensive Nuclear-Test-Ban Treaty , there have been many treaties to limit or reduce ...
3 days ago · A nuclear weapon is a device designed to release energy in an explosive manner as a result of nuclear fission, nuclear fusion, or a combination of the two. Fission weapons are commonly referred to as atomic bombs, and fusion weapons are referred to as thermonuclear bombs or, more commonly, hydrogen bombs.
- Concerns about the devastating effects of nuclear weapons have driven governments to negotiate arms control agreements. Some of the earliest ones i...
- The first test of a nuclear weapon occurred in the United States on July 16, 1945, at the Alamogordo Bombing Range in south-central New Mexico. The...
- The Soviet Union had the most nuclear weapons during the Cold War. The Soviet stockpile reached a peak of about 33,000 operational warheads in 1988...
Because of the secretive nature with which most governments treat information about their nuclear arsenals, most of the figures below are best estimates of each nuclear-weapon state’s nuclear holdings, including both strategic warheads and shorter-range and lower-yield nuclear bombs, generally referred to as tactical nuclear weapons.
- Few Countries Possess Nuclear Weapons, But Some Have Large Arsenals
- A LOF of Countries Have Given Up Obtaining Nuclear Weapons
- The Destructiveness of Nuclear Arsenals Has Declined
- Nuclear Weapons Tests Have Almost Stopped
- Nuclear Weapons Have Come Close to Being Used A Dozen Times Since World War II
- Many Countries Want to Limit Or Abolish Nuclear Weapons
Nine countries currently have nuclear weapons: Russia, the United States, China, France, the United Kingdom, Pakistan, India, Israel, and North Korea. These nuclear powers differ a lot in how many nuclear warheads they have. The chart shows that while most have dozens or a few hundred warheads, Russia and the United States have thousands of them. T...
The number of countries that possess nuclear weapons has never been higher. Only one country — South Africa — entirely dismantled its arsenal. But, as the chart shows, many more states considered or pursued nuclear weapons, and almost all of them stopped. In the late 1970s, more than a dozen countries considered or worked to acquire them. Recently,...
A simple count of the number of warheads, as shown in the previous chart, does not consider that these weapons differ in their explosive power. It also does not consider that not all of them can be used at once. The data shown in the following chart attempts to take this into account. It considers the destructiveness and deployment of nuclear warhe...
The nuclear weapons states frequently tested their warheads in the past, but tests now have almost ended. The chart shows that they peaked in 1962 at 178 tests, mostly conducted by the United States and the Soviet Union. These tests harmedthe environment and people, especially indigenous communities. Tests decreased later during the Cold War and ha...
After killing between 110,000 and 210,000 peoplein Hiroshima and Nagasaki in 1945, nuclear weapons have come close to being used more than a dozen times again.1 The chart below shows a timeline of such close calls.2We can see that some of them have been accidental, while others have been deliberate. You can learn more in our articleon the risks of ...
Countries have sought to reduce the threat posed by nuclear weapons through international cooperation. Most countries have approved the Partial and Comprehensive Nuclear-Test-Ban Treaties, which seek an end to nuclear weapons tests. The same goes for the Nuclear Non-Proliferation Treaty, whose objective is to prevent the spread of nuclear weapons. ...
May 9, 2018 · The US has pulled out of an agreement that limited how Iran was able to develop a nuclear weapon. We take a look at exactly what nuclear weapons are.
Jan 14, 2020 · These five countries are called nuclear-weapon states - and are allowed to have weapons because they built and tested a nuclear explosive device before the treaty came into effect on 1...
Jun 19, 2018 · At the start of 2018 nine states—the United States, Russia, the United Kingdom, France, China, India, Pakistan, Israel and the Democratic People’s Republic of Korea (North Korea) — possessed approximately 14,465 nuclear weapons.
