“Under President [Donald] Trump’s leadership, the United States executed a successful operation to deter the threat of a nuclear armed Iranian regime and massively degrade the regime’s ability to project power in the region,” Office of Management and Budget director Russ Vought wrote in a letter to House Speaker Mike Johnson.
The White House supplemental: totals and stated purpose
The White House transmitted an $87.6 billion supplemental spending request to Congress on June 25, 2026, according to a document obtained by Breaking Defense. Of that total, $67.1 billion is designated for defense-related expenses tied to the war in Iran. The request frames the package as covering operational costs incurred by what the submission refers to as the Department of War (DOW), including replenishing expended stocks, funding military personnel and readiness, and financing classified programs.
How the $67.1 billion defense slice breaks down
The request gives line-item figures for several priorities inside the defense portion. It asks for $21 billion “to recoup munitions expenditures,” $5.1 billion for cybersecurity and autonomy, $2.4 billion for drones, $4.0 billion for systems tied to airborne moving target indication and the space data network backbone, and $12.1 billion for classified programs. Beyond those category-level allocations, the supplemental lists $17.3 billion for operational costs, $1.7 billion for readiness needs, $1.5 billion for fuel costs, $1.2 billion for unspecified “Administration priorities,” and $800 million for National Guard support.
Coast Guard and NNSA: narrower but specific asks
The package also includes roughly $2 billion for the Coast Guard “to support Department of War (DOW) / Operation Epic Fury efforts and fill in the gaps where DOW assets are not available to support Western Hemisphere operations,” explicitly calling out the southern border. Separately, the National Nuclear Security Agency, which the document says is housed under the Department of Energy, would receive $768 million “for complete and verifiable termination of Iran’s ability to develop or acquire a nuclear weapon, including the disposition of proliferation sensitive material, technology, equipment, and infrastructure.” The remaining funds in the supplemental are allocated to other administration priorities such as disaster relief, farm aid and responding to the Ebola outbreak.
Congressional reactions: Appropriations leaders split
Republican leadership on the House Appropriations Committee moved quickly to endorse the submission. House Appropriations Chairman Tom Cole and Rep. Ken Calvert, head of the committee’s defense subpanel, said the request was necessary “to replenish critical munitions, sustain readiness, and reinforce the capacity of our military.” They added they “look forward to fully reviewing the details of the request with our colleagues.”
Sen. Patty Murray, ranking Democrat on the Senate Appropriations Committee, responded with a sharp critique, saying in a statement that “President Trump launched a reckless and costly war with Iran—without authorization from Congress or the support of the American people” and vowing to “closely review this request in its entirety” while rejecting a wholesale approval of “tens of billions more for this disastrous war of choice.”
Operational context: recent costs, missing construction funds, and near-term strain
The supplemental arrives nearly four months after U.S. and Israeli strikes on Iran in late February and follows Pentagon estimates of early costs. In late April, Jules “Jay” Hurst, then performing the duties of the Pentagon comptroller, told lawmakers the first two months of operations carried a $25 billion price tag, while declining to provide a cost estimate for repairing damaged installations.
Notably, the supplemental does not request military construction funds to rebuild bases damaged during operations in Iran, leaving Congress without a list of installations slated for repair or potential drawdowns. Department leaders have said they will assess those needs before sending construction requests.
Service leaders have warned of operational strain if supplemental funding does not arrive. In early May, Chief of Naval Operations Adm. Daryl Caudle warned House appropriators the Navy would face limits on training, exercises and related readiness activities beginning in July if new dollars did not materialize.
How commanders, lawmakers, and the National Guard are likely to react
- Commanders and service leaders: Expect immediate interest in the $21 billion munitions recoupment line and the $17.3 billion in operational costs; Adm. Caudle’s May warning suggests services will look to the supplemental to avert near-term cuts to training and certification.
- Congressional appropriators: Republican appropriators signaled support and eagerness to review; Senate Democrats signaled opposition and pledged close scrutiny, particularly around reconciliation with existing budget requests and previously appropriated balances.
- National Guard and Coast Guard planners: The supplemental’s $800 million for National Guard support and roughly $2 billion for Coast Guard activities will be watched for guidance on missions tied to Operation Epic Fury and Western Hemisphere operations, including the southern border.
The White House has put a tall, specific bill on Congress’s desk: a broad war-related replenishment package that explicitly funds munitions, classified programs and new capabilities while leaving base-repair and construction decisions for a later time. Congressional review — and the choices lawmakers make about the classified allocations, munitions recoupment, and the omitted construction funds — will determine whether the services receive relief before projected readiness shortfalls materialize in the summer.
