LONDON (Agencies): Europe’s growing reliance on US-made military equipment has raised concerns about its defense capabilities should the US decide to restrict access to critical software, maintenance, and satellite systems. Experts warn that a “kill switch” scenario—where the US halts support for European weapons—could leave key military assets inoperable.
One of the most vulnerable systems is the F-35 stealth fighter jet, which requires continuous software updates and maintenance through the US-run Autonomic Logistics Information System (ALIS). Without US cooperation, these jets could be rendered ineffective.
Similarly, US-made drones, including the widely used MQ-9 Reaper, rely on American satellite communication systems, meaning their operation could be disrupted at any time.
The UK’s nuclear deterrent is also dependent on US technology. Trident submarine-launched ballistic missiles undergo regular maintenance in the US, making them reliant on Washington’s continued support. Other critical air defense systems, such as the Patriot surface-to-air missile system, depend on real-time information sharing from US networks.
Surveillance and reconnaissance aircraft—including the P-8 Poseidon, RC-135V/W Rivet Joint, E-7 Wedgetail, and Protector UAVs—are also at risk. These systems require integration with US communication and satellite systems, and without updates or access to these networks, their effectiveness could be severely diminished.
US-made Patriot surface-to-air missile systems also depend on US information sharing.
Over the past five years, Europe’s dependency on US weaponry has increased significantly, with the US supplying more than 64% of the military equipment purchased by NATO member states in the region. This heavy reliance has raised concerns about Europe’s strategic autonomy and its ability to conduct independent military operations.
The debate over Europe’s military dependence on the US comes amid shifting geopolitical tensions and discussions on strengthening European defense capabilities. Analysts argue that unless European nations invest in homegrown defense technologies, their security infrastructure will remain vulnerable to external decisions beyond their control.