The reasons why war duly affects the price of bitcoin...from my understanding it's all countries war that can affect the price of Bitcoin from view, they are some countries that will be in battle and nobody will be worried about them,for instance, if country like USA, Russia is in battle it will affect bitcoin price immensely, because most of bitcoin investors comes from USA, so that's the reason price of bitcoin will collapse when USA is affected...the fight of Israel and Iran is not affecting bitcoin strongly due to, capital investors of bitcoin are not from there..actually the price of Bitcoin fluctuate even when theirs no war, talk more their is war between Israel and Iran, what I mean is that their's every possibility that the price of that's falling is not because of the fight.
In general, war can have a direct impact on the economic strength of each country involved. Many industries and businesses close or even go bankrupt in the two countries involved, the wheels of the community's economy are stuck, the government needs a lot of energy supplies and many other things that disrupt the economy of the two countries.
The bigger impact of the war is the disruption of the global economy, higher inflation and very expensive energy supplies. Therefore, the purchasing power of the financial market decreases, including in the crypto market. The Iran vs Israel war had the most impact in my opinion, but the Russia vs Ukraine war not so much.