BERLIN — Germany is moving ahead with a major expansion of its military space capabilities, with plans to deploy up to 1,200 satellites in Low Earth Orbit (LEO) by 2030. The initiative is intended to provide the Bundeswehr with sovereign satellite communications and persistent space-based reconnaissance, reducing reliance on foreign commercial infrastructure for critical military operations.
The planned constellation consists of two major programs: SATCOMBw Stufe 4, a secure military communications network of around 200 satellites, and SPOCK 2 (Spacesystem for Persistent Operational Tracking), a reconnaissance constellation that could include up to 1,000 satellites. Together, the projects represent one of Germany's largest defence space investments and a significant expansion of its defence space architecture.
Lessons from Recent Conflicts
German defence planners have cited recent conflicts, particularly the war in Ukraine, as an important factor in shaping the country's space strategy.
Commercial satellite internet services, including SpaceX's Starlink, played a key role in supporting Ukrainian military operations by maintaining communications, enabling drone operations, and sharing intelligence after conventional communication networks were disrupted.
However, because the network is commercially owned, access has remained dependent on the decisions of the service provider. German officials concluded that critical military communications should not depend on external commercial infrastructure.
SATCOMBw Stufe 4 is intended to provide the Bundeswehr with its own secure communications network capable of connecting ground forces, naval vessels, aircraft, and command centres worldwide through German-controlled satellite infrastructure.
SATCOMBw Stufe 4 to Replace Current Architecture
Germany's existing military satellite communications system, SATCOMBw Stufe 3, relies on two large geostationary satellites positioned approximately 36,000 kilometres above Earth. Airbus received the contract for that system in 2024, valued at around $2.4 billion, covering satellites and associated services.
The new system adopts a different approach by using hundreds of smaller satellites operating between approximately 500 and 1,200 kilometres above Earth in Low Earth Orbit.
LEO satellites provide significantly lower communication latency and wider global coverage. However, they also have shorter operational lifespans because of atmospheric drag, requiring continuous replacement launches to maintain the constellation.
The German Defence Ministry plans for an initial operational capability of approximately 40 satellites by 2029, with full deployment targeted for 2030.
European Defence Companies Form Consortium
Several major European defence and aerospace companies are working together to compete for the SATCOMBw Stufe 4 contract.
OHB and Rheinmetall have established OHB Rheinmetall Space Networks GmbH, headquartered in Bremen, to jointly pursue the program. Industry reports also indicate that Airbus Defence and Space is cooperating with the consortium.
The partnership is offering an integrated solution covering satellite design, production, system integration, operations, and cybersecurity.
The SATCOMBw Stufe 4 contract is estimated to be worth between €8 billion and €10 billion, with the German Defence Ministry expected to make its contract award around the turn of 2026 and 2027.
For Rheinmetall, traditionally known for producing armoured vehicles, artillery, and ammunition, the project represents a major expansion into military space systems.
Timo Haas, Chief Executive of Rheinmetall's Digital Systems division, emphasized the growing importance of secure satellite communications, stating that modern military operations increasingly depend on reliable space-based communication networks.
SPOCK 2 Expands Germany's Reconnaissance Capability
Alongside the communications program, Germany is also expanding its space-based surveillance capability through SPOCK 2.
The project is expected to include up to 1,000 reconnaissance satellites, making it the larger of the two planned constellations.
SPOCK 2 builds upon SPOCK 1, which was awarded in late 2025 to Rheinmetall ICEYE Space Solutions, a joint venture between Rheinmetall and Finnish satellite operator ICEYE. The contract was valued at approximately €1.7 billion (about $1.94 billion).
The satellites use Synthetic Aperture Radar (SAR) technology, allowing them to capture images regardless of cloud cover, smoke, rain, or darkness. According to project information, the SAR satellites are capable of producing imagery with resolutions of up to 16 centimetres.
Production for SPOCK 1 satellites is scheduled to begin during the third quarter of 2026 at a converted former automobile factory in Neuss, Germany.
The initial mission is to support surveillance along NATO's eastern flank, including the protection of the Bundeswehr's permanently deployed Lithuania Brigade.
SPOCK 2 is expected to expand this capability substantially by providing near-continuous monitoring of military activities, including troop movements, armoured formations, and other operational targets.
Former German astronaut and aerospace professor Ulrich Walter has noted that achieving near real-time tracking of moving military targets requires a large number of satellites operating simultaneously, making a dense LEO constellation necessary.
Long-Term Investment in Military Space
Germany's broader military space strategy is expected to require significant long-term investment.
Reports indicate that the Defence Ministry is planning to allocate at least $40 billion for overall military space capabilities. Once the full satellite constellations become operational, annual operating costs are estimated at approximately $1.14 billion.
Much of these recurring expenses will support regular replacement launches needed to maintain the Low Earth Orbit constellations as satellites gradually re-enter the atmosphere at the end of their operational lives.
While technical details of the final SPOCK 2 architecture are still being discussed between the Bundeswehr and industry partners, Germany's overall objective is to establish an independent military satellite infrastructure that provides secure communications, continuous reconnaissance, and greater operational resilience for future defence missions.
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