Hegseth asks Congress for $1.5T defense budget as Iran costs climb

US Defense Secretary Pete Hegseth urged Congress on Thursday to approve a $1.5 trillion defense budget, warning that failure to do so would be the most serious threat facing the nation, as costs from military operations in Iran continue to mount. Testifying before the Senate Appropriations Committee, Hegseth framed the request as essential to maintaining national security amid what he described as escalating challenges abroad.

The $1.5 Trillion Request

Hegseth’s appearance before the committee comes as part of President Donald Trump’s supplemental funding request for the Department of Defense. The proposed $1.5 trillion budget represents a substantial increase over current spending levels, reflecting the administration’s focus on military readiness and ongoing operations. Hegseth emphasized that the request is driven by the need to cover costs associated with the Iran conflict, including troop deployments, equipment maintenance, and munitions resupply.

“Not funding this department at $1.5 trillion, I believe, is the greatest threat that our nation faces,” Hegseth told the committee. The statement underscores the urgency the administration places on securing the additional funds, even as the federal deficit continues to grow.

Rationale Behind the Historic Budget

The defense secretary linked the budget request directly to the Iran war, arguing that the United States cannot afford to underinvest in its military while engaged in protracted operations. Hegseth cited the need to replenish stocks of precision-guided munitions and maintain a robust presence in the region. The administration’s strategy, he said, requires a fully funded Pentagon to deter adversaries and project power.

Analysts note that the $1.5 trillion figure is unprecedented in recent history, surpassing even the peak spending levels of the Iraq and Afghanistan wars. The request also includes funding for advanced technologies, such as hypersonic weapons and cyber capabilities, which Hegseth described as critical for future conflicts.

Congressional Reaction

Lawmakers on both sides of the aisle expressed skepticism about the size and scope of the request. Several Democratic senators questioned the lack of a detailed breakdown of how the funds would be spent, while some Republicans raised concerns about the long-term fiscal impact. Senator Jack Reed, the ranking member on the committee, pressed Hegseth on whether the budget was sustainable without commensurate revenue increases or offsets.

“We need to see a clear plan for how this money will be used and what the endgame is in Iran,” Reed said. Other committee members echoed calls for greater accountability, particularly given that the conflict in Iran has already cost tens of billions of dollars since it began.

Implications and Next Steps

The debate over the $1.5 trillion budget highlights a broader struggle between defense priorities and fiscal constraints. If approved, the funding would represent a major shift in U.S. defense posture, potentially accelerating a drawdown of commitments elsewhere to focus on Iran. Hegseth’s testimony suggests the administration is prepared to push for a significant increase regardless of political headwinds.

The Senate Appropriations Committee is expected to mark up the funding request in the coming weeks, with a full floor vote likely before the end of the fiscal year. The outcome will have far-reaching consequences not only for the Pentagon but also for the trajectory of the Iran conflict and the nation’s overall fiscal health.