Swiss Federal Council Requests CHF 3.4BN: IRIS-T SLM Expansion, Skynex 35mm C-UAS Systems, F-35A Cost Overrun

Switzerland joined the European Sky Shield Initiative architecture under the 2025 IRIS-T SLM order; the 2026 expansion to seven fire units locks Bern into the Diehl Defence sustainment chain for the medium-range air-defence layer. The Skynex contract — eight systems at CHF 800 million — covers the very-short-range counter-UAS layer with Rheinmetall Air Defence AG (Zurich-Oerlikon) as the prime; first deliveries are scheduled from 2028. The architecture sits inside an explicit doctrinal framing — Pfister cited "stand-off attacks and hybrid conflicts" — drawn from the Ukrainian battlespace.

The F-35A supplementary credit absorbs cost increases that, while keeping the programme within the CHF 6 billion voter-approved ceiling, reduce the fleet from 36 to approximately 30 jets. The reduction is a numerical signal: even before the Iran-war stockpile delays that would later force Switzerland to consider Patriot termination, the F-35 platform is delivering reduced fleet numbers under the same approved budget envelope. Switzerland targets 1% of GDP defence spending by 2030, requiring approximately CHF 31 billion over the decade.

The structural reading is that Switzerland is locking into European air-defence systems while US air-defence delivery timelines slip. IRIS-T SLM expansion and Skynex deliveries from 2028 close the medium- and short-range gaps; once integrated into Swiss doctrine and logistics, European systems become permanent fixtures. The Patriot purchase termination option that Bern would formally place on the table by May 2026 is the structural continuation of the same architectural logic — a trajectory that began with the German 120 PAC-3 MSE missile order.