The Italian nuclear weapons program was an effort by Italy to develop nuclear weapons in the late 1960s and early 1970s. Italian scientists such as Enrico...

possess nuclear weapons. Estimates of Israel's stockpile range between 90 and 400 nuclear warheads, and the country is believed to possess a nuclear triad...

Japan had several programs exploring the use of nuclear fission for military technology, including nuclear reactors and nuclear weapons. Like the similar...

North Korea has a nuclear weapons program, and, as of 2024, is estimated to have an arsenal of approximately 50 nuclear weapons and sufficient production...

the Biological Weapons Convention since 1975, the Treaty on the Non-Proliferation of Nuclear Weapons since 1991, and the Chemical Weapons Convention since...

Pakistan is one of nine states that possess nuclear weapons, and is not party to the Nuclear Non-Profileration Treaty (NPT) and any of its provisions....

understood to possess nuclear weapons, though only eight formally acknowledge possessing them. Five are considered to be nuclear-weapon states (NWS) under...

nuclear weapons to defend themselves against an offensive assault from the Soviet Union. From 1945 to 1972 the government ran a clandestine nuclear weapons...

possesses nuclear weapons and previously developed chemical weapons. Although India has not released any official statements about the size of its nuclear arsenal...

Iran's nuclear program has been a focal point of international scrutiny for decades. In 2003, Iran suspended its formal nuclear weapons program, and claims...

three types of weapons of mass destruction: nuclear weapons, biological weapons, and chemical weapons. It is one of the five nuclear-weapon states recognized...

developed and possesses weapons of mass destruction, including chemical and nuclear weapons. The first of China's nuclear weapons tests took place in 1964...

programs that could lead to internationally proscribed weapons. This included weapons of mass destruction (nuclear, chemical and biological weapons)...

during the military regime, Brazil had a secret program intended to develop nuclear weapons. The program was dismantled in 1990, five years after the military...

known to have a nuclear weapons program. From an official and public standpoint, Saudi Arabia has been an opponent of nuclear weapons in the Middle East...

nuclear weapons and weapons technology, to promote cooperation in the peaceful uses of nuclear energy, and to further the goal of achieving nuclear disarmament...

Taiwan pursued a number of weapons of mass destruction programs from 1949 to the late 1980s. The final secret nuclear weapons program was shut down in the late...

Iran having had a nuclear weapons program before 2003. Russia has said there was no proof Iran has ever run a nuclear weapons program. The former head...

nine countries possess nuclear weapons and delivery systems, and six more agree to nuclear sharing. Nuclear weapons are weapons of mass destruction, and...

This timeline of nuclear weapons development is a chronological catalog of the evolution of nuclear weapons rooting from the development of the science...

for the program was that the new weapon would modernize the nuclear arsenal, improve the capability of aircraft and simplify the nuclear weapons inventory...

made during the 1930s, the United Kingdom began the world's first nuclear weapons research project, codenamed Tube Alloys, in 1941, during World War...

of nuclear weapons. Besides nuclear testing site, Kazakhstan was the most significant site for Soviet military where its biological weapons program under...

believed to possess weapons of mass destruction, and to be one of four nuclear-armed countries not recognized as a Nuclear Weapons State by the Non-Proliferation...

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...

the new weapons of mass destruction? At the time, nuclear weapons had not been developed fully. Japan conducted research on biological weapons, and chemical...

weapons. Nevertheless, Saudi Arabia has made steps towards a nuclear program and according to some observations, they can be used to develop nuclear weapons...

Nuclear proliferation is the spread of nuclear weapons to additional countries, particularly those not recognized as nuclear-weapon states by the Treaty...

Nuclear weapons tests are experiments carried out to determine the performance of nuclear weapons and the effects of their explosion. Nuclear testing...

Under a military dictatorship, Argentina began a nuclear weapons program in the early 1980s, but this was abolished when democracy was restored in 1983...