Defence Satellite

 is a satellite of the Descendants.

Background
It costs 7000 Resources and four Butanium to build this automated airborne defence system. After the proper research has been completed at the Radio Dispatch Station, any unit with Construction skill level three and Builder skill level three may build a Satellite. Once built, the Satellite must be assigned a Surveillance or Defence posture. Unlike the Surveillance Satellites, Defence systems are designed mainly to capitalise on their superior airborne position and eliminate any aggressor. Moving freely at low altitudes, the Defence Satellite uses a powerful laser against land-bound units, buildings, and vehicles.