Japan doesn't want any nuclear weapons.
But Japan can easily produce nuclear weapons if it wanted to. It has the technology to build nuclear weapons within 1 year-- probably a few months if it wanted.
However, most Japanese people are against nuclear weapons. Therefore, they do not have nuclear weapons.
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The meaning of the word nuclear weapon, is a weapon that has a nuclear warhead on it.
I think that north Korea is one and an other is china.
Number of nuclear weapons by country: Country # of nuclear weapons USA 10'300 Russia 16'000 China 410 France 350
This nuclear weapon is called an atomic bomb or a nuclear bomb
An atomic weapon is an alternative name for a nuclear weapon, a weapon which derives its energy from the nuclear reactions of either fusion or fission.
Nuclear weapon detonations
China would prefer a nuclear-weapon-free Korean peninsula. However, China is North Korea's foremost foreign ally, so it is often unwilling to join the US and other nations in boycotting or sanctioning North Korean unwillingness to forego nuclear weapons.
If by "bomb" you mean a conventional explosive weapon, then the nuclear weapon is more powerful.
Answer 1If you are asking for nuclear weapons Pakistan is the only Islamic country who have nuclear weapons. However, Iran's nuclear program is rumored to be intending to create a nuclear weapon in the near future. Answer 2Pakistanis the only Muslim country having a nuclear weapon.Iran is never trying to have a nuclear weapon as the nuclear weapon is a kind of mass destruction weapons that are forbidden to use per Islam teachings (and other God religions) because this nuclear weapon kills the child, the woman, the old, and the plants and pollutes the universe.However, it is to be known also that also India, Israel, and North Korea have nuclear weapons in addition to USA, Russia, China, France, and UK.
* Earthquake Richter 5.0 = 32 kilotons nuclear weapon, like was used at Nagasaki * Earthquake Richter 6.0 = 1 megaton nuclear weapon * Earthquake Richter 7.0 = 32 megaton nuclear weapon * Earthquake Richter 7.1 = 50 megaton nuclear weapon, Tsar Bomba, the largest nuclear weapon ever tested * Earthquake Richter 8.0 = 1 gigaton nuclear weapon, much larger than anything ever made