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The United States has redirected Swiss payments originally allocated for the Lockheed Martin F-35 Lightning II program to fund the MIM-104 Patriot air defense system, despite Switzerland’s decision to freeze payments related to the Patriot program.

The development has triggered growing concern in Bern over the reliability and structure of U.S. defense agreements.

Switzerland halted payments for the Patriot system in July 2025 after being informed of multi-year delivery delays. However, the freeze has had limited practical impact due to the structure of the U.S. Foreign Military Sales program (FMS), which pools payments from multiple defense projects into a single fund.

This centralized system allows U.S. authorities to reallocate funds between programs as needed. As a result, Swiss funds continued to be used for the Patriot system, despite the formal payment freeze.

Urs Loher, the Swiss head of Armaments at Armasuisse, confirmed that U.S. authorities had redirected the payments. He described the amount as “a low three-digit million amount,” indicating a sum well exceeding 100 million Swiss francs, or roughly $126 million.

He also noted that he is no longer permitted to disclose the precise figure. “This is very unsatisfactory,” Loher added.

Budget Strain and Financial Adjustments

The reallocation has created immediate financial consequences for Switzerland’s F-35 acquisition program. With funds diverted, the Swiss Defense Ministry was forced to advance tens of millions of francs ahead of schedule in late 2025 to maintain the program’s stability.

These unplanned payments have added pressure to an already constrained defense budget, particularly as Switzerland continues to manage multiple large-scale procurement projects simultaneously. Loher acknowledged the imbalance in the situation, stating that “the balance of power is quite clear.”

Despite the payment freeze, U.S. authorities are expected to continue reallocating Swiss funds throughout 2026, further complicating Switzerland’s financial planning.

Delays Deepen amid Global Demand

Switzerland originally signed contracts for five Patriot air defense batteries approximately four years ago, with deliveries scheduled to begin in 2026. However, in 2025, the United States informed Swiss authorities that deliveries would be delayed as priority shifted toward Ukraine.

By early 2026, Switzerland was notified that delays would extend to four to five years. The situation has since been further complicated by rising global demand following the outbreak of conflict involving Iran.

The Pentagon is reportedly reassessing allocation priorities, including the possibility of redirecting interceptor missiles to the Middle East, where ongoing operations have significantly increased demand and strained U.S. stockpiles.

Swiss officials now expect a waiting period of at least five years, with no firm delivery timeline. Compounding the issue, the United States has also indicated that the cost of the Patriot system could increase by up to 50%.

Political Backlash in Switzerland

The situation has sparked criticism across Switzerland’s political spectrum, with lawmakers questioning both the effectiveness of the payment freeze and the broader reliability of U.S. defense agreements.

Senator Werner Salzmann of the Swiss People’s Party described the situation as “frustrating,” stating, “It’s frustrating when we impose a payment freeze, and the money is simply redirected.” He added that trust in Washington has been affected.

Senator Josef Dittli of the Radical-Liberal Party raised concerns that Swiss authorities may not have fully anticipated how the FMS mechanism operates.

Meanwhile, Social Democrat lawmaker Priska Seiler Graf said the situation reinforces calls to cancel the Patriot purchase entirely, reflecting broader opposition to major U.S. arms deals.

Alternatives and Strategic Reassessment

In response to the growing concerns, Swiss Defense Minister Martin Pfister is reportedly exploring alternative air defense options. One potential candidate is the SAMP/T system developed by the Eurosam consortium.

While no formal decision has been made, discussions around alternatives signal a broader reassessment of Switzerland’s defense procurement approach. However, officials have so far stopped short of canceling the Patriot contract.

Analysts note that Switzerland faces limited alternatives, particularly given capacity constraints within European defense industries. Despite political interest in diversifying suppliers and increasing domestic or European sourcing, practical limitations may restrict these options.

Broader Pattern of Procurement Friction

The current dispute adds to an emerging pattern of friction between Switzerland and the United States over defense procurement.

Switzerland’s F-35 program has already faced cost overruns, forcing the government to reduce its planned purchase from 36 to around 30 aircraft to remain within the $ 7.5 billion ceiling approved by voters in a 2020 referendum.

These adjustments were driven by price increases that Swiss officials say were not clearly indicated at the time of the original agreement.

The latest episode, involving the redirection of funds despite a formal payment freeze, has deepened these concerns and raised broader questions about sovereignty in defense spending decisions under the FMS framework.

Talks between Switzerland and the United States are ongoing, with Swiss officials seeking to secure more control over payment flows and potentially delay further Patriot-related expenditures. However, the outcome remains uncertain.

Loher reiterated the challenges facing Switzerland, stating that “the power relations are quite clear.”

For now, Switzerland is navigating a complex situation, balancing its defense needs, financial constraints, and political pressures, while reassessing the reliability of one of its most important defense partners.

The episode is likely to have lasting implications, not only for Switzerland’s current procurement programs but also for how it approaches future defense partnerships.