Nine countries in the world have 14,935 nuclear bombs. According to the Wikipedia article, seven developed countries in the world have tested nuclear weapons. The Treaty on the Abolition of Nuclear Weapons (NPT) recognizes five states as nuclear-weapon states. The countries that exploded the atomic bomb were the United States, Russia (former the Soviet Union), Great Britain, France and China.
Although the Nuclear Non-Proliferation Treaty was introduced in 1970, the three countries that have not signed the Treaty but have conducted nuclear tests are India, Pakistan and North Korea. North Korea signed the NPT but withdrew from the Treaty in 2003.
Israel is believed to have nuclear weapons but has not actually conducted any nuclear tests. They openly do not recognize the possibility of nuclear weapons and have kept it in the dark. It is estimated that Israel currently has 75 to 80 nuclear weapons in its stockpile.
But according to the research institute, the US has 6,800 nuclear weapons, Russia has 7,000, France has 3,000, Britain has 215, China has 270, India has 130, Pakistan has 140, Israel has 80, and North Korea has 20 pcs.
All countries keep this information strictly confidential.
What is known, however, is that nine countries in the world currently possess 9,000 nuclear bombs, although this number has decreased since the end of the Cold War.
