The U.S. war against Iran has cost approximately $38 billion through the beginning of August and has significantly depleted American ammunition stockpiles, according to a new report from the Congressional Budget Office.

The report estimates that the war will continue costing the United States between $2 billion and $3 billion every month, while rebuilding depleted weapons inventories could take at least five years.

The estimated $38 billion price tag includes the cost of replacing munitions, flight hours and fuel. It does not include future expenses associated with repairing ships, aircraft and military bases damaged during the fighting.

Of particular concern is the massive expenditure of missile interceptors. According to the report, the United States has used between half and two-thirds of its interceptor stockpile since June 2025.

The CBO warned that depleted interceptor inventories could become a serious national security concern if the United States were forced into another major conflict, particularly against an adversary possessing a large arsenal of ballistic and cruise missiles, such as China.

The report’s authors were forced to rely heavily on publicly available information after the Pentagon declined to provide them with detailed data regarding American weapons stockpiles.

The issue has become particularly sensitive inside the Trump administration amid leaks regarding the condition of U.S. ammunition reserves. Government investigators recently subjected approximately 50 members of the Joint Chiefs of Staff to polygraph examinations following leaks to the media about depleted weapons inventories and other details surrounding the war.

The CBO estimate closely matches figures provided by Defense Secretary Pete Hegseth in late July, when he estimated that the war had already cost approximately $37.5 billion.

The White House has asked Congress to approve $70 billion in emergency military funding to cover war-related expenses and replenish weapons inventories. The request has stalled on Capitol Hill amid opposition from Democrats to additional funding as well as concerns among some Senate Republicans.

Rep. Brendan Boyle, the Democratic congressman who requested the CBO report, sharply criticized the administration over the findings.

“Trump’s disastrous war has taken the lives of brave American service members, and beyond the human cost has cost taxpayers tens of billions of dollars,” Boyle said.

(YWN World Headquarters – NYC)