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The War May Be Ending. What Did Epic Fury Cost?

Center for Strategic and International Studies

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Reporting cited here

  1. documented

    A promised peace posture became a major, publicly financed war operation. Its scale is measurable in modeled costs and requested replenishment; final outlays and long-term security results remain unresolved.

    Modeled approximately $40 billion total with $4-$9.4 billion base-repair range and continuing-cost caveats

    The Iran War Balance Sheet — Audit finding · Cited analysis

  2. documented

    The White House described the operation as necessary to eliminate an imminent nuclear threat and degrade missile, naval, and proxy capabilities. Independent cost models differ from the later funding request and should not be added to it.

    Modeled approximately $40 billion total with $4-$9.4 billion base-repair range and continuing-cost caveats

    The Iran War Balance Sheet — Administration response · Administration response

  3. documented

    OMB transmitted the administration's supplemental funding request to Congress on June 24, 2026; the Defense Department portion was requested budget authority, not an audited final outlay. Congress referred and ordered the request printed as House Document 119-171 on July 14.

    Modeled approximately $40 billion total with $4-$9.4 billion base-repair range and continuing-cost caveats

    The Iran War Balance Sheet — Outcome · Outcome

  4. estimate

    CSIS estimated about $40 billion in additional Defense Department costs, with a $34–42 billion range, on June 23. It included munitions, operations, losses, base damage and fuel, including anticipated redeployment and replacement costs. It is an overlapping estimate with a different date and scope, not an amount to add to MilitarySpend or Pentagon figures.

    Opening estimate; Costs for the Department of Defense

    MilitarySpend estimates Iran campaign costs at $42.8 billion on September 13 · Attributed estimate; period and accounting scope stated in each measure