"At more than $5 billion and counting, the costs of Operation Epic Fury—in only its first few days of operations—could cover Supplemental Nutrition Assistance Program (SNAP) benefits for more than 2 million Americans for a year. If this war continues at the same pace, Americans could see their government burn through tens of billions of dollars, funds that would amount to the cost of Medicaid for millions in the United States."

https://www.commondreams.org/news/what-s-the-cost-of-iran-war