There are alternatives, existing and in the pipeline:
Europe rushes to start producing Patriot systems alternatives
Europe aims to produce additional air defense systems similar to the U.S. Patriot, former CIA Director Gen. David Petraeus said in an interview with NV on Feb. 16.
Petraeus addressed the prospect of expanding U.S. Patriot production, noting that Ukraine's survival depends on them and the need is estimated at over 60 interceptors per month - exceeding current capacity.
"From what I know, work is underway on additional production, and the same applies to European systems similar to the Patriot missile defense system," Petraeus said.
https://english.nv.ua/nation/work-underway-on-european-systems-similar-to-patriot-50584502.html
Air defence 'Made in Europe': Is the alternative to Patriot coming from Germany?
Germany is expanding its IRIS-T air defence system. Could the new SLM/X variant be Europe's answer to the US Patriot system?
Diehl Defence has unveiled a unified missile launcher that can fire both medium and long-range variants of Germany's IRIS-T air defence system � which, according to its capabilities, could be Europe's answer to the US-made Patriot.
The German defence company presented the launcher at Enforce Tac, Germany's leading trade fair for security and defence, bringing together the IRIS-T SLM medium-range system and the IRIS-T SLX long-range system. The new launcher can fire both missile variants, even mixed within the same battery.
https://www.euronews.com/2026/02/26/air-defence-made-in-europe-is-the-alternative-to-patriot-coming-from-germany
Missile maker MBDA says it has expertise to make Patriot launchers in Germany
BERLIN, Sept 26 (Reuters) - European missile maker MBDA could increase production capacity of Patriot air defence missiles at a new plant in Germany if orders cross "a certain threshold" and has the technical expertise to manufacture launchers for the system, the managing director of its German unit told Reuters.
Patriot, developed by U.S. defence company Raytheon, is among the most advanced air defence systems despite being in service since the 1980s.
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FIRST PATRIOT PRODUCTION PLANT IN EUROPE
In 2024, Germany, the Netherlands and Spain laid the foundation for the first Patriot production plant in Europe by signing a 5.1 billion euro ($5.98 billion) contract to purchase up to 1,000 missiles from a Raytheon-MBDA joint venture.
The missiles will be manufactured at a new facility in Bavaria in southern Germany whose construction will double the global production capacity for PAC 2 missiles, which are enhanced for the interception of tactical ballistic missiles.
"We are on schedule. We are planning to start production at the end of 2026, to ensure first delivery at the beginning of 2027," Thomas Gottschild, Managing Director of MBDA Deutschland, said in an interview.
https://www.reuters.com/business/aerospace-defense/missile-maker-mbda-says-it-has-expertise-make-patriot-launchers-germany-2025-09-26/
Last I heard, the 2027 deadline was achievable.
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