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This video can not be played       Figure caption,  Watch: What does the munitions shortage mean for the US?       By Bernd Debusmann Jr White House reporter       Published 15 September 2026           The US defence department's inspector general says the war with Iran has led to "shortfalls" in munitions and a bottleneck in resupply, contradicting President Donald Trump who has repeatedly denied the US is facing shortages.   Trump has claimed US munitions supplies are "virtually unlimited" and said reporting otherwise is "fake news".  But the independent watchdog said the US spent more than $22 billion on munitions from February through June, leading to "strategic inventory shortfalls".  When asked about the watchdog's report, the White House said the US had "more than enough" munitions.  The report provides a first-of-its-kind, independent glimpse into US weapons stockpiles, data that is typically classified. Previous estimates have (https://www.bbc.co.uk/news/articles/c0qvnk2ezp7o) painted a dire picture of the US shortages.   Over the course of the war, US forces have expended vast quantities of both long-range ground attack systems and the air and missile defences used to intercept incoming Iranian attacks.  A late July estimate from the Center for Strategic and International Studies, or CSIS, found that stocks of some interceptors - such as the Patriot missile and Terminal High Altitude Area Defense, or THAAD - were significantly depleted, in some cases by more than half. The inspector general's report did not disclose exactly how many of the weapons remain.  It did, however, note the inventory shortfalls and reveal "industrial base bottlenecks" for munitions resupply.  The report added that the defence department is now working to "streamline procurement processes and production lead times" to address the shortages and "respond rapidly to a contingency".  The White House has rejected the watchdog's assessment. "The United States military has more than enough munitions, ammo, and stockpiles to serve all of the Commander-in-Chief's strategic goals and beyond," spokeswoman Anna Kelly said in a statement on Tuesday.  Trump and other administration officials have also sought to cast (https://www.bbc.co.uk/news/articles/cy8mjd19xm7o) reports of shortages as false and "treasonous" .  In a 4 August X post, Defence Secretary Pete Hegseth described news reporting on the shortages as "not true".  And in a lengthy Truth Social post on 3 September, Trump claimed that the US had "virtually unlimited" amounts of ammunition and is "stockpiling and preparing for any contingency that could happen".  The watchdog's report also notes that equipment losses have totalled $3.7bn, with other $7.4bn in other expenditures. Overall, the US spent $33.4bn (£24.7bn) on the war from 28 Feb to 30 Jun. A separate estimate released on Tuesday by the Congressional Budget Office put the total cost of the war at higher at $38bn, which includes replaced expended munitions and equipment lost in battle, increased flying hours and greater fuel costs.      (Patriot missile launchers on a grass field in Massachusetts.)    Image source,  Getty Images  Image caption,  US Patriot air defence systems, seen here at Raytheon headquarters in Massachusetts, have been heavily used in the Iran war.        Among the losses have been four F-15e fighter jets, a highly advanced F-35 Joint Strike Fighter and 30 MQ-9 drones destroyed in "various circumstances".  When US and Israeli strikes began, Trump repeatedly said that the conflict would be over within weeks.  More recently, he said the conflict might not end until "right after" the November midterm elections in the US. Polls show that the war is unpopular among Americans.  One Reuters/Ipsos poll released in early September indicated that only 23% of Americans - and only half of Republicans - believe the US to be in a stronger position with Iran compared with before hostilities broke out.      Related topics  (https://www.bbc.co.uk/news/topics/cjnwl8q4ggwt) Iran  (https://www.bbc.co.uk/news/topics/cp7r8vgl2lgt) Donald Trump  (https://www.bbc.co.uk/news/topics/cx2jyv8j8gwt) Iran war  (https://www.bbc.co.uk/news/topics/cx1m7zg01xyt) United States        More on this story (https://www.bbc.co.uk/news/articles/c0qvnk2ezp7o) As the US pauses the war with Iran, is Trump really running out of weapons?     Published 27 July          (A treated image showing missiles coloured red and grey. They sit against a beige background.)          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