Pentagon claims existing funds cover Iran war costs while seeking $80 billion more

Operation Epic Fury, the US military campaign against Iran that launched around February 28, has already burned through initial cost projections at a pace that makes original estimates look quaint. What started as a $25 billion price tag in late April ballooned to $29 billion by mid-May, then to $37.5 billion by late July. And that $37.5 billion figure doesn’t even include the full cost of restoring what’s been spent down.

The Pentagon’s assurance that current funding is sufficient sits awkwardly next to its own formal request for roughly $80 billion in supplemental funding, submitted around June 2026. The White House went even further, putting forward an official supplemental request totaling $87.6 billion, of which $67.1 billion is specifically tagged for defense spending.

Critical munitions stockpiles tell part of the story. SM-3 interceptors, Patriot missiles, THAAD rounds, and Tomahawk cruise missiles have all been significantly depleted during operations.

Lawmakers on both sides of the aisle have expressed frustration, and not just about the money. Several members have raised war powers concerns, arguing that the military operations lack proper congressional authorization. War powers resolutions criticizing the campaign’s legal basis have surfaced in both chambers.

Congressional leaders have complained about delayed information from the Pentagon regarding the actual costs of operations. Some lawmakers have signaled resistance to approving additional funding altogether, using the authorization question as leverage.

Pentagon officials have warned that without supplemental funding, the military would face cuts to training and overall readiness.

All of this is playing out against the backdrop of the proposed fiscal year 2027 defense budget, which comes in at approximately $1.5 trillion. That figure is separate from, and in addition to, whatever supplemental funding Congress eventually approves for the Iran conflict.

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