That is excellent question and yes Bitcoin and other cryptocurrencies used for send money to conflict zones means Ukraine. When war started it was difficult to use normal banks but crypto borderless nature allowed people all over world to send donations directly to Ukrainian government and aid groups. This was much faster and lower fees than traditional bank transfers. Amount of crypto donated was huge showing power of crypto community to act fast in crisis. And this same feature which make crypto good for donations but it also makes it concern for governments because it can be used to avoid sanctions. So use of Bitcoin in conflicts show its potential for good but also challenges it creates for control and regulation.