The US has seen a massive reduction of over 20000 nuclear war heads in the last ten years through regular negotiations with Russia and other nuclear power countries. But even today, the country is sitting on over 5000 nuclear war heads as a deterrent.
The stock pile is good enough to destroy the world at least 20 times , say global experts. More and more rouge countries are expecting the nuclear stock pile to go up in the world. So expect a nuclear war to break out in some part of the world in the next few years, say experts.
That could well change the way the world deals with Nuclear weapons in future.