Iran War Costs US military spending exceeds $47 billion, Reuters reports

The United States has spent more than $47 billion on its war against Iran, according to Pentagon data obtained by Reuters, highlighting the growing financial burden of the conflict.

The latest estimate is more than 25% higher than the $37.5 billion figure provided by US Defence Secretary Pete Hegseth in July. The Pentagon did not immediately respond to a request for comment, and the latest estimate has not been made public.

The rising cost comes as Republicans face political pressure over the unpopular conflict ahead of the November 3 election, which will determine control of Congress for the next two years.

Higher global energy costs linked to the war have weighed on support for Republican candidates and contributed to pressure on President Donald Trump’s approval ratings. Republicans currently hold narrow majorities in both chambers of Congress.

According to the Pentagon figures, more than $29 billion would be required to replace the munitions used during the conflict. A further $6 billion or more would be needed to replace military equipment and cover platform losses, including aircraft and drones destroyed during the fighting.

The estimates include operational expenses such as flight missions and cyber support. However, they do not clearly account for the potentially substantial costs of repairing damage to US military bases hit by Iranian missile and drone attacks.

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Trump launched the war jointly with Israel in February, initially predicting that the conflict would be brief.

The US military’s early strategy focused on using expensive, high-end precision missiles to weaken Iran’s air defences. Washington then planned to rely more heavily on cheaper weapons, including Joint Direct Attack Munition (JDAM) kits fitted to conventional bombs.

However, an April ceasefire gave Iran time to recover equipment from underground storage facilities and restore some air defences, missiles and drones that had previously been inaccessible, according to the report.

Trump has since imposed a naval blockade on Iran aimed at restricting its oil export revenues. He has also left open the possibility of resuming combat operations after the midterm elections.

US officials, speaking on condition of anonymity, told Reuters that the Pentagon had been preparing for a possible return to heavy fighting if ordered to do so.

The latest figures highlight the financial uncertainty surrounding the conflict. The final bill could rise further if fighting resumes or the United States faces additional costs to repair damaged installations and replenish its military stockpiles.