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. These weapons were already produced at relatively low rates. According to the CBO, rebuilding inventories would require at least five years even if production increases.

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 countries have reportedly already faced schedule slippages, while Germany is seeking to advance its planned acquisition of Tomahawk missiles and Typhon launchers. There is, however, no public Pentagon confirmation establishing a uniform five-year delay. Delivery schedules depend on the missile type, contractual arrangements and the priority assigned by Washington.

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.

Long-range strike capabilities face similar constraints. The Bundeswehr confirmed in July that Berlin intends to acquire the Typhon system together with Tomahawk missiles. The mobile launcher is derived from the naval Mk 41 Vertical Launch System and uses a trailer-mounted configuration with four launch cells. It can employ either 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 the arrival of 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 still concentrated in the United States.

Allied countries nevertheless retain some industrial options. In Germany, COMLOG, a joint venture between Raytheon and MBDA, is developing a European production capability for the Patriot GEM-T under a contract covering up to 1,000 missiles. The facility is presented as the only production line of its type outside the United States, although the GEM-T is not equivalent to the PAC-3 MSE. In Japan, Mitsubishi Heavy Industries has facilities associated with PAC-3 MSE and SM-3 Block IIA production, while Tokyo and Washington are working to expand output.

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.

The geopolitical implications extend beyond the availability of individual missile types. The war with Iran shows that the same US inventories must support national operations, deployed-force protection, assistance to Ukraine and allied procurement. When those reserves decline, Washington’s priorities can affect planning in both Europe and the Indo-Pacific. For US partners, possible responses include co-production, larger stockpiles, and diversification toward European or Asian systems. Alliance planning increasingly depends not only on access to launchers and platforms, but also on the capacity to manufacture missiles at sustained rates.

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.