In a landmark decision this week, the European Space Agency (ESA) secured full backing from its 23 member states to launch a military-grade satellite network — the European Resilience from Space (ERS) — for surveillance, secure communications, navigation, and earth observation.

The ERS project, a first for ESA, received roughly €1.2 billion of the €1.35 billion it requested during the agency’s latest ministerial summit in Bremen, becoming the first explicitly defence-oriented initiative in ESA’s history.

This decision accompanies a broader €22.1 billion budget allocation for ESA over the next three years — a 32 percent increase compared with the previous cycle — signalling a clear pivot toward strategic autonomy in the face of growing space-security pressures from Russia, China, and global conflicts such as the war in Ukraine.

Under ERS, ESA will pool national and European space assets into a “system of systems”.

The constellation is designed to deliver frequent, high-resolution imagery and data — with targeted revisit times of under 30 minutes — enabling real-time observation for defence, intelligence, and emergency response operations.

ESA Director General affirmed the shift in mandate: although the agency was founded to pursue “peaceful purposes,” member states have now granted it a clear security and defence role.

he called the agreement a “clear defence and security mandate from our member states”.

The project enjoys strong backing from the largest contributors — Germany, France, Italy and Spain — which together will shape Europe’s emerging space-defence architecture.

Germany in particular has secured in exchange a commitment for a German astronaut’s participation in future lunar missions under NASA’s Artemis programme.

Defence analysts believe ERS could mark the beginning of a broader transformation: Europe is no longer content to rely on civilian space programmes alone.

As global space competition intensifies, ESA’s new satellite constellation may become the backbone of Europe’s sovereign intelligence, surveillance, and reconnaissance capabilities — potentially reducing dependence on foreign systems and providing independent early-warning and situational awareness.

Still, the shift raises serious questions: some experts warn that mixing civilian and military uses may blur lines of accountability, complicate international arms-control efforts, and provoke adversaries.

Others argue that only by acting now can Europe secure strategic autonomy in an era when space has become central to defence, economy and diplomacy.

What is clear: with the ERS programme, Europe has begun building a new generation of space assets — not only to explore the cosmos, but to defend its sovereignty in an increasingly contested arena.