Whenever war occurs consequences spread not only in that country but also across from the borders. When a state goes to war or is attacked by any other country the import and export of that country fully stops. The other country block trades with them and then if the enemy army surrounds the country they export their things. In warfare the role of oil is clear every country want to grab oil well the American are present in the KSA for the oil but the statement they follow is that they are here for the security of the KSA. And after the war when the country ends the war, the results will be very bad and they are trying to fix things just like originalgina,l and in this, the stock market may crash or go up and down.