I'm not sure war even needs to be that large for it to be a problem. Basically unless its like China vs US then you don't need sell BTC to fund the country (ev

I'm not sure war even needs to be that large for it to be a problem. Basically unless its like China vs US then you don't need sell BTC to fund the country (even then I don't think you would; but if you never need to sell BTC its pointless). If China vs US then realistically, China can and probably will cut a lot of the internet traffic between the two. Bitcoin only functions because of the public ledger; if Chinese miners aren't sync'd with non-Chinese miners then you have a double-spend problem and I can't see bitcoin not going to 0 pretty quickly.