US Burns Through Patriot Interceptors, CSIS Estimates During 39-Day Iran War

A new analysis cited by Fox News Digital says the United States may have “burned through roughly half of its Patriot missile interceptors” during the conflict with Iran, highlighting how even a campaign lasting “39-day” can strain key munitions stockpiles.

The report from the Center for Strategic and International Studies (CSIS) says U.S. forces used “more than 850 Tomahawk cruise missiles” and “more than 1,000 Joint Air-to-Surface Standoff Missiles (JASSMs)” during the air and missile campaign.

Al-Jazeera Net

It estimates Patriot interceptor use “between roughly 1,060 and 1,430 missiles,” described as “more than half of the U.S. prewar inventory.”

Fox News Digital also reports that exact U.S. munitions stockpiles are classified and that the figures are “estimates derived from Pentagon budget documents, historical procurement data and reported battlefield usage.”

The same CSIS-based reporting says the U.S. used “between 190 and 290 Terminal High Altitude Area Defense interceptors” and “between 130 and 250 SM-3 interceptors,” with unit costs given as “about $15.5 million each” and “roughly $28.7 million apiece.”

The Navy’s SM-6 missile is described as costing “about $5.3 million per unit,” with estimates that it saw “estimates ranging from 190 to 370 fired.”

Fox News Digital adds that the Pentagon chief spokesperson Sean Parnell denied reports of stockpile shortages, saying, “America’s military is the most powerful in the world and has everything it needs to execute at the time and place of the President’s choosing,” and it quotes Parnell’s statement about the Strait of Hormuz and the administration’s operations since President Trump took office.

Multiple outlets tie the munitions drawdown to the timing and tempo of the Iran campaign, with India Today saying the conflict “began in late February” and that “In the first two days of fighting, US forces reportedly used $5.6 billion worth of munitions.”

India Today reports that internal Pentagon assessments and a New York Times report cited Pentagon documents, stating that the use of “approximately 1,100 Joint Air-to-Surface Standoff Missile-Extended Range (JASSM-ER) cruise missiles” left “roughly 1,500 remaining.”

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It also says the military fired “more than 1,000 Tomahawk cruise missiles,” and it gives a per-unit cost figure of “about USD 3.6 million” for each Tomahawk, while describing Patriot interceptor use as “more than 1,200” with a price of “nearly USD 4 million” each.

India Today further states that the Pentagon said “more than 13,000 targets were struck during the 38-day conflict,” and it adds that analysts say the figure “understates the volume of weapons used, as many targets required multiple strikes.”

The same report describes equipment losses during a rescue mission involving “Navy SEAL Team 6,” saying the military destroyed “two MC-130 cargo aircraft and at least three MH-6 helicopters” to prevent sensitive technology from falling into Iranian hands, with losses estimated at “USD 275 million.”

Middle East Eye similarly frames the depletion as a global stockpile issue, saying the war “has significantly depleted a huge portion of the US military's global ammunition stockpile” and that the Pentagon has been forced to relocate equipment in “Asia and Europe commands” to rush it to the Middle East.

It also repeats cost ranges attributed to “two independent groups” as “$28b to $35b or just under $1 billion a day,” while listing “precision-strike missiles, ATACMS ground-based missiles and Patriot interceptor missiles” as prominent drained weaponry.

The reporting includes both warnings about future strain and direct denials from the Pentagon, with Fox News Digital quoting Sean Parnell’s response to stockpile-shortage claims.

Fox News Digital says analysts warn that “the greater risk lies in a future conflict against a peer adversary,” and it adds that “Rebuilding those inventories will take years.”

In the same piece, Parnell denied reports of stockpile shortages, stating, “America’s military is the most powerful in the world and has everything it needs to execute at the time and place of the President’s choosing,” and he argued that “it took less than ten percent of American naval power to control the traffic going in and out of the Strait of Hormuz.”

Fox News Digital also quotes a Navy official saying, “The Navy is taking aggressive steps to increase our munitions stockpiles and strengthen the industrial base,” and it ties that to an “FY27 budget request of $22.6 billion” that would “fund over 4,600 all-up rounds.”

The same Navy official says production increases are planned for “Standard Missile, Tomahawk, AMRAAM, and the PAC-3,” and it says the Navy is “continuing the multi-year procurements for LRASM and NSM” while “initiating new multi-year contracts for the Tomahawk and Standard Missile.”

Fox News Digital further quotes the Defense Intelligence Agency director Lt. Gen. James Adams, saying, “Despite significant degradation of Iranian military capabilities through coalition strikes in operation Epic Fury Tehran retains thousands of missiles and one-way attack UAV's capable of threatening U.S. and partner forces throughout the region,” as he told the House Armed Services Committee Wednesday.

Across the outlets, the same core dispute appears: whether the U.S. can sustain current operations versus the longer-term risk of depleted inventories.

The CSIS-based reporting in Fox News Digital and NewsBytes connects the stockpile strain to both budget and production timelines, including a stated request for “roughly $70 billion for munitions in fiscal year 2027.”

Fox News Digital says the request is “a nearly threefold increase over current levels” and that it includes “sharp increases in purchases” of systems used in the war, including “Tomahawk cruise missiles, Patriot and THAAD interceptors, and long-range strike weapons.”

India Today

NewsBytes similarly says the Pentagon’s latest budget request seeks “around $70 billion for munitions in fiscal year 2027 to replenish stockpiles strained by recent conflicts,” and it adds that “Delivery delays” are already affecting European allies.

In NewsBytes, a “European defense official” tells Fox News Digital that delays could lead allies to “reconsider future purchases of US weapons if delivery timelines become unreliable,” and it says “Estonia and Lithuania have been informed about shifting delivery timelines for US military equipment, with some shipments being put on hold due to supply constraints.”

Fox News Digital also describes a shift in how U.S. forces used weapons during the campaign, saying that after heavy use of long-range missiles in the early phase, U.S. forces “shifted toward less expensive and more plentiful weapons, including Joint Direct Attack Munitions and other short-range systems.”

It frames the concern as what comes next, stating that “Rebuilding those inventories will take years,” and it notes that “delivery timelines for many of these systems” are part of the problem.

On production, Fox News Digital quotes the Navy official about “multi-year procurements” and “multi-year contracts” for Tomahawk and Standard Missile, while NewsBytes adds specific contractor targets: “Lockheed Martin aims to boost Patriot interceptor production from around 600 per year to about 2,000 by the end of the decade,” and “RTX plans to increase Tomahawk production to over 1,000 missiles per year.”

India Today and Fox News Digital both describe how the munitions strain is affecting broader readiness and force posture, including redeployments and constraints tied to “finite limits to the magazine.”

“The war in Iran has significantly depleted a huge portion of the US military's global ammunition stockpile, according to a report published by The New York Times”

Middle East Eye

India Today says the rapid depletion of munitions has forced the U.S. to divert weapons and equipment from other regions, weakening its global military posture, and it reports that supplies were redirected from both Europe and Asia to support operations under US Central Command.

Middle East Eye

It says “Training exercises have been curtailed,” and it adds that “shortages in surveillance and attack drones have affected operational readiness,” while also describing the impact as “even more pronounced in the Indo-Pacific.”

India Today reports that the U.S. “redeployed the USS Abraham Lincoln carrier strike group from the South China Sea to the Middle East” and “sent two Marine Expeditionary Units from the Pacific,” and it says advanced missile defence systems, including Patriot and THAAD interceptors stationed in South Korea, have also been moved.

It quotes Admiral Samuel J Paparo Jr, saying during a Senate hearing that “there are finite limits to the magazine,” and it frames that as acknowledging limits on replenishment.

Fox News Digital, for its part, says the U.S. still has enough munitions to sustain operations in the current conflict, but it notes that after heavy use of long-range missiles early on, U.S. forces shifted to “less expensive and more plentiful weapons,” implying a tactical adaptation under constraints.

Middle East Eye adds that the Pentagon has been forced to relocate equipment in “Asia and Europe commands” to rush it to the Middle East, reinforcing the picture of redistribution rather than purely new production.