New data provided by U.S. Central Command to congressional national security committees indicates that the ongoing conflict in Iran has incurred at least $43.6 billion in military costs as of September 3. Analysts suggest this figure likely remains an undercount, as it excludes expenses related to repairing U.S. base infrastructure across the Middle East, including the Navy’s logistics center in Bahrain, which sustained significant damage from Iranian strikes.
A primary driver of these expenses is the replenishment of military hardware. The Pentagon reports spending $28.1 billion to replace munitions, such as air defense interceptors and bombs, following the start of U.S. and Israeli airstrikes on February 28. This rapid expenditure has sparked concerns regarding a potential shortage of critical munitions, which officials warn could leave the United States exposed in other strategic theaters like the Indo-Pacific.
The human and operational impact of the mission remains substantial. More than 50,000 service members are currently deployed within the Central Command area of responsibility. Since the conflict began, at least 18 Americans have died and over 800 have sustained injuries. Regarding equipment expenditures, the Air Force has recorded $6.6 billion in costs and the loss of dozens of aircraft, while the Navy has spent $2.2 billion to maintain presence via multiple aircraft carriers and a fleet of over 20 warships. The Army has accounted for an additional $1.6 billion in costs.
These financial disclosures coincide with mounting political friction in Washington. Rep. Thomas Massie, R-Kentucky, recently introduced impeachment articles against Defense Secretary Pete Hegseth, alleging that military operations in Iran have proceeded without necessary congressional approval. House Speaker Mike Johnson moved to cancel legislative sessions on September 17, effectively avoiding a floor vote on the matter.
Legislative critics continue to target the leadership of the Department of Defense. Sen. Tammy Duckworth, D-Illinois, described Hegseth on September 16 as “the most incompetent secretary of defense we’ve had in our nation’s history.” Duckworth argued that his tenure has not only damaged national security but also placed a significant financial burden on American taxpayers. The Pentagon has not issued a formal response to these inquiries. The report also notes that which was viewed by, is almost certainly an undercount, the cost update.
