U.S. Missile Shortages Delay Patriot and Tomahawk Deliveries and Strain NATO Defense Planning.

US missile stock depletion is delaying allied deliveries by several years as Washington prioritizes replenishment after heavy wartime interceptor use. The pressure is exposing allied dependence on US production lines and accelerating efforts to expand output, build local capacity and consider alternative air defense and long-range strike systems.

The shortages affect systems including Patriot interceptors, Tomahawk cruise missiles and the Typhon launcher architecture, with Switzerland already facing a five-to-seven-year delay for Patriot deliveries and Germany relying on Typhon as an interim long-range strike capability. US industry is expanding PAC-3 MSE production from roughly 600 toward 2,000 interceptors annually, while allies are pursuing European production lines and alternative systems to reduce exposure to future supply constraints.

Related News: U.S. Moves to Triple Patriot PAC-3 and Quadruple THAAD Air Defense Missile Production Under 7-Year Deals

A Dutch Patriot air defense system during operations. Delays affecting US missile production and replenishment are increasing pressure on allied delivery schedules and interceptor availability. (Picture source: Netherlands Ministry of Defence)

The shortage stems from the gap between operational consumption and industrial output. The CBO estimates that replacing munitions used through August 1 would cost $21.7 billion, including $13.1 billion for Patriot, THAAD, SM-3, and SM-6 interceptors. It also assesses that the United States has probably consumed between half and two-thirds of its interceptor inventory since June 2025. The Pentagon has separately acknowledged that munitions expenditure during Operation Epic Fury created strategic inventory shortfalls and exposed bottlenecks in resupply. Officials identify solid rocket motors, high-grade explosives, propellants, and skilled manufacturing labor among the most persistent constraints, meaning additional funding alone cannot immediately restore depleted inventories.

Against this background, a Bloomberg investigation published on September 18 reported that several allies had been warned of delays of up to five years for certain missile and air-defense deliveries. Some Eastern European customers have reportedly already faced schedule slippages, while Germany is pursuing Tomahawk missiles and Typhon launchers for its future conventional long-range strike capability. There is no public Pentagon confirmation of a uniform five-year delay across allied orders. However, the U.S. government has separately acknowledged that requirements generated by Operation Epic Fury led Washington to hold or postpone deliveries of defense articles already purchased by some allies and partners, causing political friction in recipient countries. Delivery schedules therefore depend on the weapon type, existing contracts, production capacity, and U.S. prioritization.

The Patriot system illustrates these pressures. Its PAC-3 Missile Segment Enhancement is a hit-to-kill interceptor designed to engage tactical ballistic missiles, cruise missiles and aircraft. Its dual-pulse solid rocket motor extends the engagement envelope, while an M903 launcher can carry up to 12 PAC-3 MSE interceptors. In April, the US Army committed $4.7 billion to accelerate production. Lockheed Martin plans to increase annual capacity from about 600 missiles to 2,000 by the end of 2030, after delivering 620 in 2025. This expansion remains dependent on the broader supplier base.

For NATO allies, long-range strike planning creates another point of exposure to U.S. production capacity. The Bundeswehr confirmed in July that Germany intends to acquire the Typhon system together with Tomahawk cruise missiles. The mobile system adapts the naval Mk 41 Vertical Launch System to a land-based architecture and can employ Tomahawk or SM-6 missiles. The Bundeswehr gives the Tomahawk a range of around 2,000 kilometers and views Typhon as an interim capability pending European long-range strike systems expected in seven to ten years. RTX received a $22.9 billion contract in August aimed at supporting production of more than 1,000 Tomahawks annually, with manufacturing concentrated in the United States. Any sustained pressure on that production base could therefore affect the timetable on which Germany expects to establish this bridging capability.

NATO allies are also trying to move part of the missile supply chain onto European territory. In Germany, COMLOG, the joint venture between Raytheon and MBDA Deutschland, is establishing production capacity for Patriot GEM-T interceptors under a NATO Support and Procurement Agency framework covering up to 1,000 missiles for a coalition including Germany, the Netherlands, Romania, and Spain. The interceptor is distinct from the PAC-3 MSE, but local production gives European Patriot operators an additional source for part of their missile inventory. NATO has said that RTX and MBDA are due to open the first European facility for Patriot missile manufacturing in September 2026, while the Alliance has launched the NATO Engine to connect available industrial capacity across Europe, Canada, and the United States for high-demand areas including air defense and strike systems.

Dependence on US supply can also be reduced through alternative suppliers. Switzerland stated on May 13 that the estimated delay affecting its Patriot deliveries had increased from four to five years to five to seven years because of the Middle East conflict. Bern is examining offers from Germany, France, Israel and South Korea, with a preference for European-based production. The Franco-Italian SAMP/T NG and its Aster 30 missile provide another option for some air and missile defense missions, although they are not a direct substitute for Patriot in every role.

At the tactical level, interceptor shortages first reduce magazine depth. A Patriot battery may remain operational while imposing tighter allocation rules for its missiles when facing combined salvos of drones, cruise missiles and ballistic missiles. Slower replenishment can also reduce opportunities for live-fire training and complicate the simultaneous protection of multiple sites. For Germany, delays affecting the Typhon-Tomahawk combination would also weaken the bridging function Berlin intends the system to provide before European deep-strike capabilities enter service.

For NATO, the resulting challenge is increasingly one of industrial depth as much as missile availability. The same U.S. inventories and production lines must support American combat operations, protection of deployed forces, assistance to Ukraine, and procurement by European allies seeking additional air defense and long-range strike capacity. When those inventories fall, national U.S. replenishment priorities can feed directly into NATO force planning. European Patriot production, pooled procurement, larger national stockpiles, and alternatives such as SAMP/T NG can reduce part of that exposure, but expanding missile inventories requires years rather than months. The ability to sustain NATO air and missile defense will therefore depend increasingly on how quickly the Alliance can convert higher defense spending into additional production capacity and usable interceptor stocks.

Written By Erwan Halna du Fretay - Defense Analyst, Army Recognition Group
Erwan Halna du Fretay holds a Master’s degree in International Relations and has experience studying conflicts and global arms transfers. His research interests lie in Security and strategic studies, particularly the dynamics of the defense industry, the evolution of military technologies, and the strategic transformation of armed forces.