I'm hearing a lot of people talk about how BTC will prevent wars and play a significant role in discouraging international violence
Never heard this specifically. One could easily go down the rabbit hole of btc being libertarian, and in that sense, yes, if suddenly all governments on earth have been dwindled down to a libertarian ideal, we wouldn't have a lot of conflict. The vast majority of people, aside from the MIC and their vampire politicians, overwhelmingly want to live in peace.