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CBO: U.S. military has spent roughly $38 billion on the war in Iran, costs rising

Topic: defense & securityRegion: Middle EastUpdated: i2 outletsSources: 6⚠ Bias gap — sources divergeSpectrum: Mostly CenterFiltered: US/Canada (2/6)· Clear⏱ 4 min read⚠ 48h+ old
📰 Scored from 2 outletsacross 1 Center 1 RightHow we score bias →
Story Summary
SITUATION
The Congressional Budget Office estimated the U.S. military has spent roughly $38 billion on the war in Iran, using an Aug.
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Spectrum: Mostly Center🌍US: 1 · Asia: 1
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i2 outlets · Center
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Center
Right
Left: 0
Center: 1
Right: 1
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i2 unique outlets · Dominant: US/Canada
KEY FACTS
  • Iran war has cost the US more than $38 billion: Congressional Budget Office - The Statesman
  • The Congressional Budget Office's most recent government cost estimate for the war in Iran is roughly $38 billion.
  • Secretary of War Pete Hegseth told the Senate Appropriations Committee on July 21 that the department's estimated cost was $37.5 billion.
  • The $38 billion estimate includes costs to replace expended munitions, equipment lost in battle, increased flying hours, and increased fuel costs.
  • The U.S. military carried out more than 13,000 strikes in Iran between the start of the war and the April ceasefire, and that total has increased since then.
  • The CBO report used an Aug. 1 cutoff date, and the actual cost has continued to rise since then.
  • The Department of Defense does not publicly reveal the number of munitions it has on hand.
HISTORICAL CONTEXT

The immediate backdrop is the ongoing March 2026 coordinated U.S.–Israeli military campaign against Iran, a campaign that began with large-scale strikes by U.S. and Israeli forces in early March 2026 and has prompted a series of Iranian military responses throughout 2026.

That March 2026 campaign followed months of escalating exchanges in the region and was framed by U.S. and Israeli officials as a concerted effort to degrade Iranian military infrastructure, air defenses and capabilities; Iranian missile and drone strikes in 2026 must be understood as responses to that joint campaign.

Brief

The Congressional Budget Office concluded in a recent analysis that the U.S. military has spent roughly $38 billion on the war in Iran, using an Aug. 1 cutoff for its accounting and noting costs have already continued to rise (per Washington Examiner).

That figure aligns closely with the Pentagon's published estimate to Congress: Secretary of War Pete Hegseth told the Senate Appropriations Committee on July 21 that the department's cost estimate was $37.5 billion (per Washington Examiner).

The CBO explicitly tallied replacement of expended munitions, equipment lost in battle, heavier flying hours and higher fuel consumption as core drivers of that bill (per Washington Examiner). The analysis arrived after a request from Rep.

Brandon Boyle, the ranking member of the House Budget Committee, and serves as the most recent government-wide estimate available with the August cutoff noted in the CBO filing (per Washington Examiner).

The report also referenced operational tempo: the U.S. military carried out more than 13,000 strikes in Iran from the start of the war through the April ceasefire, and that strike total has increased since the cutoff date, pressuring sustainment and replenishment budgets (per Washington Examiner).

The CBO and Pentagon figures underline a budgetary squeeze: replacing expended munitions and lost equipment and meeting increased flight and fuel demands are explicit line items pushing the tally toward $40 billion, with the CBO warning the true cost is already higher than its Aug. 1 estimate (per Washington Examiner).

The Department of Defense does not disclose its on-hand munitions inventory, a lack of transparency the CBO note implicitly ties to uncertainty about future replacement needs and cost projections (per Washington Examiner).

Going forward, the CBO number provides Congress a baseline for appropriations and oversight as the war's operational demands continue to drive spending upward (per Washington Examiner).

Where sources differ
Bias gap0.50 / 2.0

Left- and right-leaning outlets are covering this story differently — in which facts to emphasize, which context to include, and how to frame causes and consequences.

Center (5)
thestatesman.comvalleynewslive.comaa.com.trcbsnews.comcbo.gov
Right-leaning (1)
washington_examiner+0.70
The Congressional Budget Office released a cost estimate that the U.S. military has spent roughly $38 billion on the war in Iran, and the actual cost is already higher. The CBO use…
Related Developments1 story
CBO: U.S.-Iran war has cost $38 billion and rising $3 billion monthly
The U.S.-Iran war has cost $38 billion through the reporting period, and the Congressional Budget Office projects the conflict will add about $3 billion a month to that total (per Al-Monitor). The continuing monthly fiscal drain is the immediate consequence highlighted in the report, with projected costs set to climb unless combat operations slow or funding priorities change (per Al-Monitor).
2d ago
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Sources
2 of 6 linked articles · Filter: US/Canada