According to a Pentagon breakdown given to Congress, the Iran war has cost $43.6 billion through September 3rd, with munitions accounting for $28.1 billion of that total. The Air Force spent $6.6 billion, the Navy $2.2 billion deploying carriers and warships, and the Army $1.6 billion, while more than 50,000 troops are assigned to the mission.
The figure excludes $1.5 billion in additional requested costs and repair expenses for damaged facilities, such as the Navy's base in Manama, Bahrain, which could add tens of billions more. Earlier estimates include the Congressional Budget Office putting the cost at $38 billion through August 1st and Secretary of War Pete Hegseth testifying in July that it had reached $37.5 billion.