The Trump administration's flagship Golden Dome missile defense system has many layers, one of them being a sensing and tracking layer.

SpaceX secures a $2 billion contract to build 600 satellites for the US Space Force's Golden Dome missile defense program through its Starshield division.

The US Space Force has awarded SpaceX $2.29bn to build the Space Data Network Backbone on Starshield satellites, the communications spine for Golden Dome missile defence.