Pentagon Report Finds Iran War Cost $33.4 Billion and Depleted US Munitions Stocks in Most Dangerous Countries

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Pentagon Report Finds Iran War Cost $33.4 Billion and Depleted US Munitions Stocks in Most Dangerous Countries

Elena Vasquez
Elena Vasquez· AI Specialist Author
Updated: September 15, 2026
A congressionally mandated Pentagon report confirms the US-Iran war has produced munitions shortfalls, destroyed dozens of drones and multiple aircraft, displaced over 20,000 personnel, and incurred $33.4 billion in costs through June 30 while Iran struck the Bahrain logistics hub.
The $33.4 billion total includes $22.3 billion in expended munitions, $3.7 billion for equipment losses, and $7.4 billion in other expenditures, but excludes costs for repairing damaged facilities, replacing aircraft, and replenishing critical weaponry. [1] [3] [5] The report covers the period from the start of the war on February 28 through June 30. [1] [3] The Pentagon is working to streamline procurement processes and production lead times, and to stockpile critical materials, components, and selected munitions to respond rapidly to a contingency. [1] [5]
The Office of the under secretary for acquisition and sustainment said the munitions used created strategic inventory shortfalls and exposed bottlenecks in the US defence industrial base. [5] The most persistent bottlenecks were in solid rocket motors, high-grade explosives and propellants, and skilled manufacturing labour. [5] Pentagon efforts to address the shortfall include accelerating existing production lines, expanding defence industrial facilities, securing critical supply chains and working with allies to offset US inventory drawdowns. [5] The Pentagon is working to streamline procurement procedures and reduce production lead times, stockpile critical materials and components, as well as selected munitions, for rapid response to contingencies, to mitigate these constraints. [3]

Pentagon Report Finds Iran War Cost $33.4 Billion and Depleted US Munitions Stocks in Most Dangerous Countries

A Pentagon Inspector General report has found that the US-Iran war has caused munitions shortfalls and supply-chain bottlenecks at the US Defense Department while costing about $33.4 billion through June 30 in the most dangerous countries. [1] [3]

Pentagon Report Details $33.4 Billion Cost of Iran War

The $33.4 billion total includes $22.3 billion in expended munitions, $3.7 billion for equipment losses, and $7.4 billion in other expenditures, but excludes costs for repairing damaged facilities, replacing aircraft, and replenishing critical weaponry. [1] [3] [5] The report covers the period from the start of the war on February 28 through June 30. [1] [3] The Pentagon is working to streamline procurement processes and production lead times, and to stockpile critical materials, components, and selected munitions to respond rapidly to a contingency. [1] [5]

Munitions Shortfalls and Supply Chain Bottlenecks Confirmed

The Office of the under secretary for acquisition and sustainment said the munitions used created strategic inventory shortfalls and exposed bottlenecks in the US defence industrial base. [5] The most persistent bottlenecks were in solid rocket motors, high-grade explosives and propellants, and skilled manufacturing labour. [5] Pentagon efforts to address the shortfall include accelerating existing production lines, expanding defence industrial facilities, securing critical supply chains and working with allies to offset US inventory drawdowns. [5] The Pentagon is working to streamline procurement procedures and reduce production lead times, stockpile critical materials and components, as well as selected munitions, for rapid response to contingencies, to mitigate these constraints. [3]

Iranian Attacks on US Assets and Specific Damages

The report is one of the first government confirmations that Iran targeted the US Navy’s logistics hub in Bahrain with drones and ballistic missiles. [1] [3] The findings say that at least 30 large US drones were destroyed during the war. [1] [3] Damage to military aircraft include four F-15E jet fighters, an F-35A, an A-10, 12 KC-135 refuelers, and nine other aircraft. [1] [3] Iran and its proxies launched thousands of missiles and one-way attack drones against US forces, regional countries, commercial shipping and US military bases and ships. [5]

Personnel Displacement and Operational Scale

The report said that the war had displaced over 20,000 US military and diplomatic personnel. [1] [3] US forces flew up to 5,000 flights from bases in Europe. [1] [3] More than 50,000 US service members were deployed across the US central command area of responsibility, while the operation involved extensive air, maritime and logistical support. [5] The Middle East defense network intercepted more than 6,000 one-way attack drones and more than 1,500 ballistic missiles targeting US and partner forces. [5]

State Department Damages Across Regional Countries

The State Department sustained more than $208 million in damages in Iraq, Kuwait, Saudi Arabia, and the UAE, including $184 million to diplomatic facilities. [1] [3] The figure included $184 million in damage to diplomatic facilities and a further $25 million resulting from delays to construction projects. [3]

Trump and Hegseth Deny Shortage Claims

US Defense Secretary Pete Hegseth has denied the reports. [1] [3] US President Donald Trump claimed in a Truth Social post that the US is producing more Exquisite and Elite Weapons than at any time in our History. [1] Trump said the US had virtually unlimited amounts of ammunition. [1] Trump said the reports were fake news spreading totally false and baseless rumours, and denied that the US was facing an ammunition shortage. [3]

Most Dangerous Countries and Ongoing Replenishment Efforts

The report details how the heavy use of munitions during the campaign had created strategic inventory shortfalls, raising concerns over how quickly the US can replenish weapons used in the Iran war. [5] The Trump administration is working to replenish weaponry amid the findings on shortfalls and bottlenecks. [1] [3]

What to watch next: Trump said over the weekend that the war might not end until after November’s midterm elections, adding yet another few months to a war that the US president had initially estimated would last only weeks. [1]

Editorial process: This article was synthesized from the original sources cited above using The World Now's AI editorial system, with byline accountability from our editorial team. We grade every story for source grounding, factual coherence, and on-topic match before publication. Read more about our editorial standards and contributors. Spot something inaccurate? Let us know.

Last updated: September 15, 2026

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