What's the point of making them? They are dangerous, and its no good if we use them. US, Russia and other big countries has over 1000 of them stored. Why do we need them??? Even one can annihilate mankind.
I dont really know why we have them to say that we are powerful I guess I mean if all of them went off all across the world gian chunks of Earth would fly into space and the Earth would go spinning into the sun plain and simple
It most certainly cannot destroy half the area of a state. Fallout will affect large areas but not destroy them. The actual area destroyed when compared to a state is negligible.