Europe has spent the last few years watching its tech anxiety go from background hum to full orchestra. It's not hard to see why. In June 2026, France's intelligence services announced they were dropping Palantir, the American data analytics firm long embedded in European defence and policing work, in favour of a domestic provider, explicitly citing the need for "strategic autonomy." Germany's military reportedly will not touch Palantir at all, and the UK is now fielding parliamentary debates over a quarter-billion-pound contract with the company, partly because, as one legal analysis bluntly put it, even European data sitting in European data centres can still be pulled by U.S. authorities under American law, contracts or no contracts. It's the kind of detail that makes "data sovereignty" sound less like a policy buzzword and more like a genuine catch.
Then, just days before this was written, the U.S. government ordered Anthropic to cut off access to its most advanced AI model, Mythos, for anyone who wasn't a U.S. citizen, citing national security concerns. Anthropic's response was to switch the model off for everyone, Americans included, rather than build a citizenship checkpoint overnight. The episode lasted only days, but it landed exactly where Europe's anxieties already live: the frontier of AI doesn't just sit outside Europe's control, it sits inside one government's control, and that government can flip a switch.
None of this means Europe should panic, or try to build its own version of everything from scratch by Thursday. As the cost estimates make clear, chasing full autonomy across the entire AI stack would run into the trillions of euros, well past the point of being realistic. The more sensible response, is for Europe to get serious about which parts of the stack actually need to be sovereign, where partnership is a perfectly good substitute for ownership, and where its real strength, regulatory leadership, can be used deliberately rather than as a consolation prize. Sovereignty, in other words, isn't about owning everything. It's about knowing exactly what you can't afford to depend on.