Cost to US for war on Iran is $3.7bn in first 100 hours

The US-Israeli war on Iran is estimated to have cost Washington $3.7bn so far in its first 100 hours alone, or nearly $900m a day, driven largely by the huge expenditure of munitions, according to new research.

An analysis by Washington-based think tank the Center for Strategic and International Studies (CSIS) underlined the colossal cost of the war, which entered its seventh day yesterday, as the US attacks Iran with stealth bombers and advanced weapons systems.

Researchers Mark Cancian and Chris Park said only a small amount of the estimated $3.7bn cost of the war in the first 100 hours was already budgeted for, while most of the costs – $3.5bn – were not.

That meant the Pentagon would likely need to request more funding soon to cover the unbudgeted costs, they said.