International Campaign to Abolish Nuclear Weapons

Countries which possess nuclear weapons: United States, United Kingdom, France, China, Russia, India, Pakistan, Israel, North Korea.

Countries which once possessed nuclear weapons: South Africa, Ukraine, Belarus and Kazakhstan.

Countries under the United States nuclear umbrella: Australia, Japan, South Korea and all NATO countries which are Belgium, Bulgaria, Canada, Czech Republic, Denmark, Estonia, Germany, Greece, Hungary, Iceland, Italy, Latvia, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Turkey.

Countries with nuclear reactors: Algeria, Argentina, Australia, Austria, Bangladesh, Belgium, Brazil, Bulgaria, Canada, Chile, People's Republic of China, Colombia, Democratic People's Republic of Korea, Democratic Republic of the Congo, Egypt, Finland, France, Germany, Hungary, India, Indonesia, Iran, Israel, Italy, Japan, Mexico, Netherlands, Norway, Pakistan, Peru, Poland, Romania, Republic of Korea, Russian Federation, Slovakia, South Africa, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom, United States, Vietnam.