WASHINGTON — The United States fired so many munitions at Iranian targets during the first few months of Operation Epic Fury that it “has resulted in strategic inventory shortfalls and revealed industrial base bottlenecks for munitions resupply,” Pentagon officials acknowledged to the Defense Department’s independent watchdog.

Acquisition officials said they are “working to streamline procurement processes and production lead times, and to stockpile critical materials, components, and selected munitions to respond rapidly to a contingency,” the Pentagon inspector general said in a report released late Monday.

The IG report, which covers the U.S. military’s operations in the conflict with Iran through June 30, marks an official confirmation of a problem the Trump administration has repeatedly downplayed.

“The U.S. has massive amounts of ‘munitions,’ especially of certain types,” Trump posted on social media Aug 6. In another post Sept. 9, Trump said the U.S. has “virtually unlimited amounts” of mid- to high-grade ammunition — “far more than we could ever use for this, or for any other War.”

The Defense Department estimated it had spent $22.3 billion worth of expended munitions in the war as of about the end of June, according to the report, while the overall cost through that period totaled more than $33 billion.

The Congressional Budget Office also estimated Tuesday that the direct cost of the first five months of the war in Iran cost $38 billion and will push inflation up 0.5 percentage points by early next year.

The report is the Pentagon IG’s first quarterly assessment of Operation Epic Fury, and reads as a high-level budgetary guide to the cost of the war, with dollar amounts attached. Congress requires these quarterly reports on U.S. military operations where appropriated dollars are spent. The report includes contributions from the watchdogs overseeing the State Department and U.S. Agency for International Development.

A senior Pentagon official said Tuesday that it doesn’t agree with the IG’s findings, “and any report that suggests that the United States’ munitions are depleted are completely false.”

Iran’s military has damaged or destroyed “hundreds” of buildings and structures at U.S. bases in the region, while U.S. diplomatic facilities in four countries sustained physical damage from Iranian strikes, U.S. Central Command told the IG.

The report listed 11 U.S. service members killed in action as of the end of July, with another seven killed in non-hostile events during Epic Fury combat operations. More than 400 service members were wounded in action through the end of June.

The Pentagon didn’t release an immediate comment on the report.

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