Well, your bitcoin would be inaccesible since bitcoin requires internet and a mobile phone. You could no longer exchange it for goods and services or physical currencies. The only thing you can do is to move out to another country where there is no conflict in order for you to survive, or just seek some help.
For our daily living we still need fiat. Bitcoin can help in a way that you don't have to carry any cash with you in war zone region. But even if you migrate to other country than converting btc to Fiat will be difficult as you don't have banking facility available in country where you taking asylum.
Bitcoin has its pros and cons in war situation. If you just wanna move your assets to safe location unless the conflict is over then bitcoin is ideal.
the safest thing is to move assets in bitcoin during a war situation like this. even though in a war situation there is no internet network, but when the war is over and the infrastructure can be used, then we can access it again as long as we still keep the key phrase. Of course it will be very difficult if in a war situation, I think the most important thing is to meet the needs of food
In times of war then you would really be mainly thinking on where you would be securing your assets from fiat to crypto because you would already projecting out on what would be the possible
things to happen but pretty much sure that majority of citizens havent able to set such thing neither they dont know about bitcoin/crypto or simply cant just afford on making such step
minding that it might really be that risky to do so or arent that sure.Of course you would really be minding first about your survival which you would be assuring priorities.