Would ww3 actually be the end of the world, or would it be another regular war? Obviously the scale of a war between nato and russia, china, whoever would be significantly larger than america and iraq (for example) but would any country actually be stupid enough to use nuclear weapons?
Using nukes sort of defeats the point of going to war doesn’t it? If you turn a country into a radioactive wasteland:
A) they’ll just do it to you as well, and
B) even if they don’t retaliate, there will be nothing left to conquer, so you gain nothing