I don't know what virtual world you are living in, though if we have a world war 3, bitcoin is gone. Everything is gone.
the last world war had no effect on technology as there was no internet to destory. Once that little black box in england is gone, we will have to start a fifth of the world again.
Humanity is to reliant on technology, world war 3 is not going to raise bitcoins strength, but it will destroy it along with everything that you use to access it.
That is just my 2 cents