France will begin trialling its own artificial intelligence-powered battlefield command system during a NATO exercise in Poland on Monday, marking a significant push for European technological sovereignty in defence. The system, known as Arcadia, has been developed with French companies including Mistral AI, Safran, Thales, and Airbus, and is explicitly positioned as a European alternative to Maven, an AI platform used by NATO that was built by US defence contractor Palantir.
Arcadia will be deployed during NATO's Coalition Warrior Interoperability Exercise, which runs from 8 to 26 June at a training ground in Poland, according to General Patrick Justel, deputy chief of staff of the French Army. The system is designed to optimise decision-making and target identification on the battlefield by integrating vast amounts of data from multiple sources.
European push for defence tech independence
NATO began using the Maven Smart System, derived from the Pentagon's Project Maven, in 2025. While it has been praised for speeding up command decisions, French officials have raised concerns about relying on a system developed by a US company with a controversial track record in military operations, mass surveillance, and immigration enforcement. Palantir's involvement has drawn criticism from civil liberties groups and some European governments.
“Arcadia is our response to Maven,” Justel said in a media briefing on Thursday, as reported by Defense News. “The question arises whether we should adopt Maven blindly, or should we look for other solutions.”
The French trial is part of a broader European effort to reduce dependence on US defence technology. The Dutch State Secretary for Defence, Derk Boswijk, told the House of Representatives this week that a “fully fledged alternative” to Palantir must be available within two years. The Netherlands is pursuing a “two-track policy to reduce dependency” on the company, aiming to operate independently “as soon as possible” and find a European alternative.
Germany has also signalled it will not contract US companies, including Palantir, for its database projects. “As much as we are interested in the functionality for our own database, it is simply inconceivable at the moment to grant industry staff access to the national database,” Thomas Daum, head of Germany's cyber defence, said this week, according to Reuters.
Denmark is reportedly seeking local solutions to replace a seven-year deal with Palantir. The trend reflects a growing unease across European capitals about the strategic risks of outsourcing critical military infrastructure to a single US firm.
Interoperability and architecture differences
France has already tested Arcadia in exercises in Romania and domestically. The system has been designed to comply with NATO's Federated Mission Networking (FMN) standards, which are essential for ensuring interoperability between allied forces. Palantir says its system also aligns with FMN principles and is moving toward full certification, but interest in a European-built alternative appears to be growing.
“When we talk to our European partners, we get the same reaction of, ‘well, we’ve kind of gone with Maven because there’s no choice, but if countries in Europe are able to build an alternative, we’ll go for it,’” Justel said.
Arcadia is built as a decentralised system, linking command posts to field-based servers in a mesh network, while Maven relies on a more centralised architecture. This difference could give Arcadia advantages in resilience and survivability on a contested battlefield, where central nodes may be targeted.
The French trial comes amid broader debates in Europe about defence autonomy and the role of US technology in NATO operations. The European Union has been pushing for greater strategic autonomy, and the development of Arcadia is a concrete step in that direction. For now, the system will be tested alongside existing NATO infrastructure, but its success could reshape how European allies approach battlefield AI.
For more on related developments, see European Governments Seek Alternatives to US Defence Tech Contractor Palantir and French Rafale Jets Intercept 11 Russian Aircraft Over Baltic in NATO Mission.
