The U.S. Space Force awarded SpaceX a $2.29 billion contract on Tuesday to build a secure, high-speed satellite communications network for military use.

The fixed-price agreement covers the Space Data Network Backbone, a resilient architecture designed to provide high-capacity and low-latency data transport. The network will connect military sensors and weapons platforms across the globe.

Space Force officials said the contract uses a nontraditional approach and requires the vendor to deliver a fully operational prototype capability by the end of 2027. The system relies on a proliferated constellation of low-Earth orbit satellites.

The backbone will support integration of data from missile warning and tracking sensors to interceptors in near real time. This capability aligns with broader Pentagon efforts to enhance joint force connectivity.

The award represents a significant expansion of SpaceX's role in national security space programs. It builds on the company's existing work with the Space Force on launch and satellite services.