U.S. Patriot missile inventories in Europe have fallen to what one defense official described as “beyond critical” levels after large numbers of interceptors were redirected and expended during the Iran war, creating new concerns about NATO’s ability to counter a potential Russian ballistic missile attack.
By yourNEWS Media Newsroom
U.S. forces stationed in Europe are facing a severe shortage of Patriot missile interceptors after months of heavy American expenditures in the Middle East, leaving the military with limited capacity to defend NATO territory against a sustained ballistic missile attack, according to American and alliance officials cited by The Associated Press.
A U.S. defense official in Europe characterized the Patriot inventory as “beyond critical,” while a NATO official separately confirmed that American and alliance stocks of the interceptors in Europe are low. Both officials spoke on condition of anonymity because they were discussing sensitive military capabilities.
The shortage is particularly significant because Patriots are among the principal weapons available to NATO for intercepting Russia’s fast-moving ballistic missiles.
If Moscow were to launch ballistic missiles against a target such as a NATO military headquarters or power facility, the alliance could find itself confronting the same scarcity that Ukraine has faced while attempting to defend its cities and infrastructure.
Without enough interceptors, NATO could be forced “to take punch after punch in the mouth,” the U.S. defense official said.
The official said American forces in Europe “definitely” lack sufficient Patriots to counter a sustained ballistic missile attack. Even in the case of a single missile strike or an errant Russian missile entering NATO territory, U.S. forces would have a “very limited” ability to respond.
The shortages have intensified during President Donald Trump’s war with Iran, which reaches the six-month mark Friday.
Patriot missiles and other interceptors previously positioned in Europe have been transferred to the Middle East, where U.S. forces and Gulf allies have used substantial quantities of air defense weapons against Iranian drones and missiles. Some Iranian attacks during the conflict have killed and wounded American service members.
The resulting pressure on U.S. inventories has spread across multiple theaters.
Ukraine has continued to request additional air defenses as Russian ballistic missiles increasingly penetrate Ukrainian defenses. Kyiv maintains that U.S.-made Patriot systems are the only weapons in its arsenal capable of reliably stopping Russia’s most advanced ballistic missiles.
Russia again launched a barrage overnight into Thursday that included weapons capable of challenging Ukraine’s air defense network.
The United States has supplied hundreds of Patriot interceptors to Ukraine during the 4 1/2-year conflict with Russia. Those transfers reduced U.S. inventories before the Iran conflict began, but experts say the Middle East war accelerated the depletion.
Ed Arnold, a senior associate fellow at the Royal United Services Institute, a London-based military think tank, said the flow of missiles to Ukraine had been planned and relatively controlled.
The Iran war was different, he said, because interceptors in the Middle East were consumed unexpectedly and at a rapid pace, revealing limitations in the production and supply system.
Mark Cancian, a retired Marine colonel and senior adviser at the Center for Strategic and International Studies in Washington, said the Biden administration supplied Ukraine with approximately 600 Patriot interceptors after Russia launched its full-scale invasion in 2022.
The Iran conflict has produced a substantially greater expenditure.
According to CSIS, about 65% of the U.S. Patriot inventory has been used during the fighting with Iran. That represents approximately 1,500 missiles out of an estimated national inventory of 2,330 interceptors.
Approximately 600 additional Patriot missiles, including weapons intended for Europe, are expected to be manufactured this year, Cancian said.
Production is scheduled to expand substantially in the coming years, with a target of producing 2,000 Patriot missiles annually by 2030.
NATO is also expanding European manufacturing capacity.
The alliance says Europe’s first Patriot missile production facility is scheduled to open in Germany in September, with deliveries potentially beginning early next year.
The first missiles produced there are expected to go to countries that have already placed orders, including Germany, the Netherlands, Romania and Spain, according to the U.S. defense official.
That production schedule does little to resolve the immediate shortage.
Arnold said some countries have purchased costly Patriot launch systems without currently having missiles available for them, placing Germany, for example, in the “ridiculous” position of possessing the system without ammunition to fire.
Germany’s Defense Ministry said it does not discuss weapons stockpile levels.
The Pentagon similarly declined to provide information about U.S. munition inventories, citing security considerations.
NATO publicly disputed the assessment that the shortage has reached a crisis point.
U.S. Army Col. Martin O’Donnell, a senior NATO military spokesperson, said it is “simply not the case” that Patriot missile inventories in Europe are beyond critical levels.
O’Donnell said NATO remains capable of defending alliance territory while continuing to provide military support to Ukraine.
The alliance, he said, can “block punches” and has enough air defense munitions both for its own protection and for additional donations to Kyiv.
Even with that assurance, the technical demands of ballistic missile defense leave relatively few alternatives to Patriot interceptors.
Modern ballistic missiles approach their targets at extreme speeds, often descending at more than five times the speed of sound. Their steep trajectories give defenders only a short period to detect, track and destroy them.
A Patriot battery tracks an incoming missile, calculates its projected flight path and launches an interceptor within minutes, performing the computations necessary to guide the defensive missile into its target.
Its protection is geographically limited, however. A single Patriot battery can cover an area such as a small military installation but cannot provide defense for an entire city.
Russia can further complicate air defense operations by combining advanced ballistic missiles with large numbers of inexpensive drones, potentially forcing defenders to expend interceptors or overwhelming available systems.
Ukraine and some NATO members operate other weapons capable of destroying slower drones without relying on costly Patriot missiles, but intercepting ballistic weapons presents a much more demanding challenge.
France and Italy’s SAMP/T NG could eventually provide another option.
France has pledged to accelerate delivery of the upgraded SAMP/T system to Ukraine. Its manufacturer says the new generation is better equipped to counter ballistic missiles.
The upgraded model has not yet been tested in combat, however, while the existing SAMP/T has a shorter range than the Patriot.
American and European warships equipped for air defense can also provide mobile protection, but their effectiveness depends heavily on location. Ships could be positioned too far away to defend particular land targets and could themselves become vulnerable to attack.
The Patriot shortage is not the only ammunition problem confronting U.S. forces in Europe.
American forces are also experiencing critical shortages of the Army Tactical Missile System, known as ATACMS, according to the U.S. defense official and the NATO official.
ATACMS is a medium-range ballistic missile intended to strike targets behind enemy lines.
Europe’s broader offensive missile situation is less severe than its air defense shortage because several European countries possess their own long-range strike weapons.
Those include the Taurus and Storm Shadow, both air-launched, long-range missiles designed to attack hardened targets and bunkers.
The immediate concern over defensive ammunition comes as Western governments continue assessing how quickly Russia could pose a direct military threat to NATO.
European and NATO officials have warned that Moscow could be capable of attacking an alliance member by 2030. Patriot inventories are expected to have recovered substantially by that point as production increases.
Russia’s continuing war against Ukraine could reduce the near-term danger because Moscow would face considerable difficulty conducting large-scale air campaigns against Ukraine and NATO simultaneously.
Russia continues to launch attacks on Ukraine on an almost nightly basis, consuming its own missiles and other military resources.
Ukraine has also conducted increasingly deep strikes inside Russia, exposing deficiencies in Russian air defenses. Those vulnerabilities could influence Russian President Vladimir Putin’s calculations because an attack on NATO could provoke a retaliatory campaign against Russian territory.
“Moscow likely cannot carry out a sustained air assault on a NATO target while it launches almost nightly attacks on Ukraine,” Arnold said.
“The uncomfortable truth is possibly the best air defense that we have is Russian constraints,” he added.
The possibility of a Russian attack on NATO is not considered imminent, but the concern has received attention at the highest levels of the U.S. government.
CIA Director John Ratcliffe traveled to Moscow this week to warn Russia against attacking NATO, according to The Wall Street Journal.
Trump sought to minimize the significance of the unusual and secretive visit, describing it as “sort of semi-routine.”
For the immediate future, NATO’s vulnerability depends in part on whether Russia remains constrained by its war in Ukraine and whether Western manufacturers can rebuild interceptor stocks faster than they are consumed.
The Iran war has altered that calculation by drawing large quantities of Patriot missiles away from Europe and into the Middle East, while Ukraine continues to require the same interceptors for its defense.
Until new production catches up with those competing demands, the shortage leaves U.S. and allied forces in Europe with substantially less ballistic missile defense capacity than commanders say would be needed for a sustained attack.
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