Without a doubt, the US. This was true from 1945 until the mid-1980s, when the USSR passed the US. Russia still has the most today.
Many countries have nuclear weapons today including the United States. China, North Korea, South Korea, and Japan also have nuclear weapons.
Neither the US nor Russia are making nuclear weapons of any kind at this time. Other countries however are making nuclear weapons; some are North Korea, India, and Pakistan.
Today eight countries are in possessionn of nuclear weapons. The five nuclear weapons states United States, Russia (former Soviet Union), United Kingdom, France and China, are the only countries allowed to have nuclear weapons according to the Non-Proliferation Treaty (NPT) from 1970. All members of the United Nations except Israel, India and Pakistan have signed the NPT.
USA, Russia, UK, PRC, France, India, Pakistan, North Korea are known for having nuclear weapon. Israel probably also owns nuclear weapon but never officialy declared it.
as per today's update Russia has more than 3000 nuclear warheads(deactivated),1200 warheads ready for use. US has nearly 2400 nuclear warheads stockpiled and 400 nukes ready for use.
yes
The nuclear weapons of the cold war still exist. They were in responsible controlled hands during the cold war (which is why there wasn't a war). The problem: Keeping them out of un-controlled hands.
The tiniest amounts of plutonium (Pu) can be found in uranium that we remove from the ground. But most plutonium today is found at nuclear weapons plants or wherever nuclear weapons are kept. There is also some in nuclear fuel facilities. Certainly it is present in spent nuclear fuel.
USRussiaUKFranceChinaIndiaPakistanNorth Korea
Ehm, it's (still) Russia!?
the creation of the nuclear weapons because that made everyone fear us(u.s) hence the cold war and the race for the creation of more nuclear weapons and it affects us 2 this day because everyone is always fearing a nuclear holocaust