United States defence secretary Pete Hegseth has told senators that the American war against Iran has so far cost $37.5 billion, as the Trump administration seeks nearly $88 billion in additional military funding. The disclosure came during a tense Senate Appropriations Committee hearing marked by protests and growing bipartisan demands for greater clarity over the conflict’s objectives, duration and ultimate cost.
Pentagon warns of critical shortfalls
Hegseth described the administration’s $87.6 billion supplemental funding request as both urgent and necessary. He warned that the Department of Defense could face serious financial shortfalls without congressional approval, potentially affecting military salaries, equipment replacement and continuing operations.
Approximately $67.1 billion of the request is connected directly to the campaign against Iran. The funding would cover existing operational costs, replenish weapons and equipment already used, and provide resources for further military action.
The wider request also includes about $21 billion for military readiness, while substantial funding would support missiles, ammunition and other offensive capabilities. The Pentagon argues that repeated strikes and defensive operations have consumed expensive precision weapons at a rate that was not anticipated in the existing defence budget.
Lawmakers challenge administration’s strategy
Senators from both parties pressed Hegseth and General Dan Caine, chairman of the Joint Chiefs of Staff, to explain the administration’s long-term strategy. Several expressed frustration that the stated purpose of the conflict appeared to have shifted over time.
Initial military action was presented as an effort to eliminate Iran’s nuclear capabilities. The administration has subsequently placed greater emphasis on protecting international shipping, reopening the Strait of Hormuz and preventing further Iranian attacks against American interests and regional partners.
Critics argued that Congress was being asked to approve another vast allocation without receiving a clear definition of victory or a reliable timetable for ending the campaign. They also questioned whether the administration had provided sufficient information about remaining ammunition stocks and the full financial exposure facing taxpayers.
Human and economic costs continue to rise
The funding debate has intensified following further American military casualties. US personnel have been killed and hundreds wounded since the conflict began, increasing pressure on the administration to explain how continued operations will improve American security.
Higher oil prices have added a domestic economic dimension to the debate. Disruption around the Strait of Hormuz and fears of further escalation have pushed up energy costs, potentially increasing petrol, transport and food prices for American households.
The $37.5 billion estimate covers expenditure already incurred and projected costs through the end of the financial year on 30 September. It is significantly higher than earlier public assessments and may continue to rise if daily exchanges of missiles, drones and air strikes persist.
Congress faces decision before funding runs low
The hearing highlighted a widening dispute over presidential war powers. Some senators have argued that the scale and duration of military operations require explicit congressional authorisation rather than continued reliance on executive authority.
Hegseth maintained that withholding funds would endanger service members and weaken the United States’ ability to deter further Iranian attacks. Opponents countered that approving the request without stronger conditions could allow an open-ended war to expand without adequate legislative control.
Congress must now decide whether to provide the Pentagon with the requested resources, reduce the package or attach conditions governing their use. The outcome will influence not only the immediate military campaign but also Washington’s broader credibility, defence readiness and fiscal position.
Newshub Editorial in North America – 22 July 2026
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