Of course, war usually has a profound and lasting effect on any economy because it affects the overall economic stability of that country. Nothing will function well because of the impact the war has caused. war brings about inflation, trade disruption, currency devaluation, an increase in government spending, and lots of infrastructural and human damage, so many refugees and IDP camps to mention a few.
Oil plays a significant role in modern warfare due to its role in energy supply, logistics, and so on but there are other resources like information, food and water, mineral and material resources, economic and financial resources that also help in determining the outcome of a conflict.


Yes, you are absolutely right. If we see Russia Ukraine war then we can see its impact on global economy. Ukraine is the Europe's largest country by land area entirely in Europe and it plays a crucial role in global trade. Europe is called the bread basket of the Europe because it is highly fertile soil. Ukraine is the world's 5th largest exporter of the wheat, 4th largest exporter of corn and barley. It also top exporter of the seed oil but cause of this war world is facing problems as Russia faces sever internationals sanctions for its invasion and as a result shortage and higher prices in key sectors are likely to be felt all over the world.