Tens of thousands.
fifth rank in nuclear weapons
You had better ask the Pentagon!
Around 400 nuclear warheads. China has the third largest nuclear arsenal in the world.
12, 250 China has the 2nd largest nuclear arsenal in the world.
Two nuclear weapons ended World War 2.
There were no nuclear weapons in WW1. The nuclear bomb was not invented until WW2.
Egypt is not believed or suspected to have nuclear weapons, or a nuclear weapons program, at this time (May 2009). See Related Link for a discussion of the world's nuclear powers.
The word "nuke" can mean a nuclear power plant or a nuclear weapon.As of January 2013, there are 437 nuclear power plants in operation in the world.Because countries with nuclear weapons are secretive about how many they have, the exact number of nuclear weapons is not known. The Federation of American Scientists estimates there are more than 17,000 nuclear warheads in the world as of 2012.
In the most basic sense, proliferation of nuclear weapons is the spread of nuclear weapons and weapons usable technology in the world. In a much broader sense, it refers to the acquiring of capability to produce nuclear weapons, or weapons-grade nuclear material (high-enriched uranium, plutonium) by states previously not possessing them.
It is difficult to provide an exact number as the use of nuclear weapons would have catastrophic global consequences, potentially leading to nuclear winter and widespread devastation. It is imperative to prevent the use of such weapons to protect life on Earth.
nuclear weapons
Nuclear weapons are a good thing for the United States because they prevent others from using nuclear weapons on the US. In general, the world would probably be a better place without nuclear weapons if it weren't for the fact that they lead to research in all fields of Nuclear Engineering, like Nuclear Power plants and Nuclear Physics. Since nuclear weapons already exist in the world, for the US to get rid of their nuclear weapons would be unwise. Countries that dislike nuclear weapons or even radical terrorist cells and organizations would now have no reason not to launch a nuclear warhead at the US since no retaliation would occur. The strategy of nuclear weapons preventing others from using them against the US is called the Deterrent Strategy.