Did We Go Too Far?

With nuclear weapons now, and strategic tactical weapons as well, you don't even need proximity. So why do you need to move into countries that are right up on russia's borders? You're going to be able to hit them more than nly, from great distances. 36 nations, at last count, have closed their air space. It is not because they are just trying to, you now, keep the sky clear. There's because if there's a risk that someone is going to let off a nuclear weapon, they have to see it and detect it and do what they can about it,. which these days is not much.