Allies Race to Harden Military Satcom as China Expands Its Space Relay Network

Space-based military communications are at the center of an accelerating competition between the United States and its allies on one side and China on the other, with each making significant moves in the span of just a few days.

The Western Push: Laser Links and a European Constellation

The award reflects a broader Space Force push toward resilient, high-throughput connectivity that can survive in a contested environment★.

Across the Atlantic, Spain announced it will invest between €1.6 billion and €2 billion — roughly $1.8 billion to $2.3 billion — to build a national military satellite communications constellation. Spain's commitment signals that European governments are moving beyond reliance on shared or commercial capacity and investing directly in sovereign military space assets★.

China Adds Relay Capacity and Secretive Payloads

While Western nations were announcing new programs, China was adding to its on-orbit capabilities. A Long March 6A rocket launched a new pair of TJS-27 satellites — described as secretive, placed into a programmatically novel orbit — alongside an upgraded Tianlian data-relay satellite.

The dual launch underscores that China is simultaneously expanding both its acknowledged relay architecture and its fleet of less-transparent orbital assets★.

Explaining the Stakes to Congress

Beyond hardware, advocates are working to ensure policymakers understand what conflict in space would actually mean. The Space Force Association's National Spacepower Center has been building an unclassified environment designed to demonstrate to members of Congress how satellites can be threatened and what the downstream effects on Earth-based military operations would look like. The effort reflects a recognition that space is no longer a benign support layer for other domains — it is itself a potential battlefield — and that budget decisions need to be made by lawmakers who can grasp that reality without requiring a security clearance to do so.

Taken together, the K2 Space contract, Spain's constellation commitment, China's relay expansion, and the Spacepower Center's congressional outreach point to the same conclusion: space-based communications are now treated by major powers as critical warfighting infrastructure, and the race to secure, expand, and where necessary contest that infrastructure is well underway.

★ AI inference: One or more analytical conclusions in this article were drawn by the AI from cited facts and are not directly stated in the cited sources.