US has fired over 850 Tomahawk missiles at Iran, raising stockpile concerns: report

The United States has fired more than 850 Tomahawk cruise missiles during four weeks of conflict with Iran, significantly depleting its precision-guided weapons stockpile, The Washington Post reported on Saturday, citing Pentagon officials.

Launched from ships and submarines, Tomahawks — long central to US military operations since the Gulf War — have been heavily relied upon in the ongoing conflict. However, their limited annual production, estimated at only a few hundred, has raised concerns about dwindling reserves.

Officials told the newspaper that the Pentagon is closely tracking missile usage, with stockpiles in the Middle East described as “alarmingly low” and nearing “Winchester” — military slang for running out of ammunition — potentially affecting current and future operations.

Read: Israeli foreign minister denies country facing interceptor shortages

The report said the heavy reliance on the missiles, known for their range of over 1,000 miles and precision strike capability, may force the US to consider repositioning assets from other regions, including the Indo-Pacific, alongside efforts to boost production.

Pentagon spokesman Sean Parnell, however, rejected concerns, saying the US military “has everything it needs to execute any mission at the time and place of the President’s choosing and on any timeline”. He criticised media coverage as “biased” and accused it of attempting to “frighten and sow doubt” among the public.

Many of the missiles were used in the early phase of Operation Epic Fury, sources said, with one strike reported near an elementary school in Minab, Iran.

The US has also launched more than 1,000 air defence interceptor missiles, including systems such as Patriot and Terminal High Altitude Area Defence (THAAD), in response to Iranian counterattacks. Officials noted that these inventories are also limited and not publicly disclosed.

Mark Cancian of the Centre for Strategic and International Studies (CSIS) said more than 800 Tomahawks used in Iran could represent about a quarter of the total stockpile, potentially leaving gaps for conflicts in the Western Pacific. His think tank estimated the US Navy had around 3,100 Tomahawks at the start of the war.

The navy has acquired nearly 9,000 Tomahawks over the programme’s history, though many are older and now obsolete, according to a CSIS assessment.

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Questions over Israel's interceptor stockpiles as Mideast war drags on

Similarly, the ability of Israel's highly sophisticated air defences to keep intercepting Iranian attacks is also coming under scrutiny as the Middle East war drags on into a second month.

The military has dismissed reports that it is running low on the interceptors used to shoot down the steady stream of Iranian missiles and Hezbollah rockets fired at Israel.

However, some analysts suggest that the war against Iran has significantly drained allied resources, with long-range interceptors among the most severely depleted.

Israel has a multi-layered air defence array, with a variety of systems intercepting threats at different altitudes.

The top tier consists of the anti-ballistic missile Arrow systems, with Arrow 2 operating both within the Earth's atmosphere and in space and Arrow 3 intercepting above the Earth's atmosphere.

Below that sits David's Sling, which was created to target medium-range threats, including drones, shorter-range ballistic missiles and cruise missiles.

Israel's famed Iron Dome system is the third tier and was originally designed to intercept short-range rockets and artillery shells.

US systems also complement Israel's air defences with some THAAD anti-missile batteries reportedly in Israel.

"There is no area in Israel that is not under multi-layer defence," said reservist Brigadier General Pini Yungman, who played a key role in developing the country's air defences and is now president of defence company TSG.

But "there is no 100% in defence", he told AFP.

"To get the 92% that we are getting all together with all the systems, it's outstanding".

The Israeli military, which reveals few details about its air defences, says Iran has launched more than 400 ballistic missiles since the start of the war.

Spokesman Lieutenant Colonel Nadav Shoshani recently lauded the interception rate as "exceeding expectations".

Most damage in Israel has been caused by falling debris, but among the 19 civilians killed in the country since the start of the war, more than half died when Iranian missiles broke through.

Around two weeks after the war began, news outlet Semafor first reported that Israel was "running critically low on ballistic missile interceptors", citing unnamed US officials.

An Israeli military source at the time denied the reports, saying there was no shortage "as of now" and that the military was "prepared for prolonged combat".

But analysis published by the London-based RUSI defence think tank on Tuesday indicates that the US, Israel and regional allies have burned through vast quantities of missiles and interceptors since the end of February.

Researchers estimated that in the first 16 days of conflict, allied forces expended 11,294 munitions costing roughly $26 billion.

Stockpiles of long-range interceptors and precision munitions in particular, it said, were "nearing exhaustion".

"This basically means that if the war continues, coalition aircraft have to fly deeper into Iranian airspace — and on the defensive side it means absorbing more Iranian missiles and drones," one of the co-authors, US Air Force Lieutenant Colonel Jahara Matisek, told AFP.

Long and costly production timelines make the depletion of high-end interceptors, like Israel's Arrows, particularly critical.

Each Arrow 2 interceptor costs an estimated $1.5 million, with Arrow 3s costing around $2m.

"The bottleneck isn't just money. It's industrial physics", Matisek said, pointing to issues, including capacity constraints at the supplier level.

These are "production lines that don't scale like an iPhone factory", he said.

These are munitions "you save for the worst threats", he said, and the supply "is never going to be huge".

The RUSI analysis estimated that 81.33% of Israel's pre-war Arrow interceptor stocks had already been depleted, and that they would likely "be completely expended by the end of March".

Yungman insisted that, taking into account all its air defence systems, Israel could produce interceptors faster than Iran could produce ballistic missiles.

He added that Israel accelerated its interceptor production after Hamas's October 7, 2023, attack and upgraded its systems to deal with ballistic missiles.

The military confirmed on Monday that it was a malfunction in David's Sling that had allowed Iranian ballistic missiles to strike the southern towns of Dimona and Arad last week.

Dimona is widely believed to hold Israel's undeclared nuclear arsenal.

Israeli financial newspaper Calcalist reported that the military had chosen to use David's Sling in a bid to preserve Arrow interceptor stocks.

Faced with the challenges posed by Iranian missiles, Israel has three options to conserve interceptor stocks, Jean-Loup Samaan, a senior researcher at the Middle East Institute of the National University of Singapore, told AFP.

"Mixing the different missile systems in order to avoid massive shortages; not intercepting missiles or drones if they land in unpopulated areas; and increasing the pressure on the offensive campaign, hoping that they are able to degrade Iran's capabilities before the IDF's air defence resources run out."