U.S. military outlays for the Iran conflict have risen above $47 billion, according to Pentagon figures obtained by Reuters, marking a rise of more than 25% over the Defense Department's July projection. The surge comes as Republicans grapple with the war's political impact ahead of the November 3 election.

Replacement costs run into billions

The newest assessment has not been made public, and the Pentagon did not immediately respond to a request for comment. It is compared with the $37.5 billion estimate Defense Secretary Pete Hegseth gave in July.

The numbers encompass expenses for conducting the war, such as flight operations and cyber support, and also outline large needs to restock ammunition and replace lost gear:

  • More than $29 billion is expected to be required to replenish munitions used in the fighting.
  • Replacing equipment and lost platforms, including aircraft and many drones, would need over $6 billion.

The calculations do not clearly include the sizable repair costs anticipated for U.S. bases damaged by Iranian missile and drone attacks, leaving a significant war-related expense category ambiguous in Pentagon accounting.

Energy costs weigh on Republicans

The unpopular conflict has become a political liability for Republicans seeking to keep their slim majorities in both houses of Congress. The November 3 vote will determine which party controls Congress for the next two years.

The war's impact on global energy prices has eroded support for Republican candidates and hurt President Donald Trump's approval ratings. The higher spending figure adds a fresh disclosure about the war's price in the election fight.

Blockade continues after April ceasefire

Trump launched the war alongside Israel in February, expecting a short-lived clash. His early strategy relied on expensive precision missiles to hit Iranian defenses before moving to cheaper, abundant weapons such as air-launched JDAM gravity bombs.

An April ceasefire let Iran dig out underground storage sites and regain access to some defenses, missiles and drones that had been out of reach.

Trump then ordered a naval blockade aimed at cutting off Iran's oil export revenue and has left the door open for renewed fighting after the midterm elections. Unnamed U.S. officials said the Pentagon is preparing for a return to heavy combat if directed.