US Central Command disclosed a $43.6 billion tally for the Iran war on September 3, up from the Congressional Budget Office’s $38 billion figure dated August 1. The new estimate, shared with lawmakers, indicates a monthly surge of roughly $3 billion as the conflict’s intensity fluctuates.
Weapon‑mortar costs climbed over $6 billion in just a month, jumping from $21.7 billion in the CBO report to $28.1 billion in the C‑COM sheet. 18 American soldiers have died and more than 830 have been wounded, according to the Defense Casualty Analysis System, while the Pentagon inspector‑general noted extensive damage to U.S. bases across the Middle East.
Defense Secretary Pete Hegseth urged Congress to approve a $1.5 trillion budget in a speech in Austin, Texas, citing the need to fund drones and other high‑technological projects. Democrats, however, have demanded a full accounting of the war’s costs, arguing that the Pentagon has withheld essential data as taxpayer dollars swell.
The congressional budget debate is set to intensify once the House Defense Appropriations Committee convenes next week, with Republicans pushing the $95 billion Iran‑war package through while Democrats seek tighter oversight. The outcome will shape both the war’s financial trajectory and the broader defense spending agenda for the 2027 fiscal year.