The effect of war include rising inflation, extreme poverty, increasing food insecurity, deglobalization, and worsening environmental degradation. All the effect here are what we see in the Ukraine and Russia war, example is inflation that is affecting different country in their economy because products going out from Ukraine like wheat or corn leaving out there in small quantity and expensive. Russia is not supplying energy to Europe neighborhood and that slow access to production in the region there and causing life to be difficult.
The degradation of environment is also there if war happen and this is major effect on agricultural produce leading into the food shortage and insecurities around that.
There are many negative effect of war but no profit and rebalancing fiscal priorities could prove quite challenging even in advanced economies.
Can you tell me - did you deliberately “forget” the causal link in the examples you gave?
“Conflict in Ukraine, where you can hide, because there is a lot of territory there” is a TERRORIST attack of Russia on Ukraine, in violation of all Russian laws and obligations.
“The conflict in Palestine” is a consequence of what? That's right - Hamas' TERRORIST attack on Israel, and the continuing regular massive shelling of Israel, where there is “little room and no place to hide”. by Hamas and its collaborators in neighboring countries.
You talk about stopping wars, but for some reason you don't talk about not starting them, you talk about punishing the instigators of them....