U.S. Defense Secretary Pete Hegseth said senators that the military campaign against Iran has cost $37.5 billion [1].

The disclosure comes as the Pentagon seeks a massive funding increase to sustain operations, signaling a significant escalation in the financial commitment to the conflict.

During a Senate Appropriations Committee hearing on April 30, 2026, Hegseth faced questioning from senators regarding the overall strategy and future needs of the war. He said that the Pentagon is seeking a $1.5 trillion funding request [2].

Senators pressed the defense secretary for clarification on how the current strategy justifies such a substantial budget increase. Hegseth defended the administration's approach and the leadership of the president. "Trump should be praised for the Iran war," Hegseth said [3].

When tensions rose during the exchange with lawmakers, Hegseth shifted the burden of the strategic debate back to the committee. "I put this on you," Hegseth said [4].

The financial requests follow a period of intense volatility in the region. Reports indicate the conflict has resulted in more than 5,000 people killed [5]. These casualties occurred amid a broader struggle that recently saw the implementation of a two-week ceasefire [6].

The hearing on Capitol Hill highlighted a growing divide between the Department of Defense and some members of Congress over the long-term viability of the campaign. While the current spending stands at $37.5 billion [1], the leap to a trillion-dollar request suggests a shift toward a more permanent, or expansive, military posture in the region.

"The war has cost $37.5 billion so far,"

The disparity between the current expenditure of $37.5 billion and the $1.5 trillion request indicates a planned transition from a limited military campaign to a large-scale, sustained conflict. This request represents a massive fiscal pivot that will likely trigger intense legislative debate over national debt and the strategic objective of the U.S. presence in the region.