U.S. Defense Secretary Pete Hegseth said at a Senate hearing that the war with Iran has cost $37.5 billion to date [1].
The figure represents a significant increase in the financial burden of the conflict, signaling a need for more aggressive congressional funding to maintain military operations.
Speaking during a hearing in Washington, D.C., on Tuesday, July 21, Hegseth said the Pentagon raised its official estimate for the U.S.-Israel war against Iran to $37.5 billion [1, 3]. This updated number is a sharp increase from an earlier Pentagon estimate of $25 billion provided in late April [2].
Defense officials updated the estimate to include projected military costs through the end of the fiscal year on Sept. 30 [4, 5]. The revised cost serves as the basis for a request for additional funding from Congress, totaling nearly $70 billion [4].
"Without these funds, we face critical shortfalls," Hegseth said [4].
While the official Pentagon figure stands at $37.5 billion [1], some sources suggest the total cost of the conflict could be far higher [2]. The discrepancy highlights the difficulty of tracking expenditures in an active military engagement involving multiple allies, and operational theaters.
Throughout the hearing, Hegseth said that the increased spending is necessary to sustain the current strategic posture. The request for nearly $70 billion [4] aims to cover both immediate operational needs and long-term sustainment through the end of the year.
“The war with Iran has cost $37.5 billion so far”
The rapid escalation of the estimated cost—rising $12.5 billion in just three months—indicates a significant intensification of U.S. military involvement. By anchoring a nearly $70 billion funding request to these rising costs, the Pentagon is signaling to Congress that the conflict is expanding in scope and will require a substantial long-term financial commitment beyond current appropriations.
