The Aegis orbital defense platforms were Earthforce's last line of defence and were a major component in Earth planetary defense grid. The platforms feature an array of medium and long range missiles as well as an extremely powerful particle beam weapon. On its own, a single Aegis has enough firepower to wipe out the entire eastern seaboard of North America. Collectively, the planetary defense grid has the potential to level up to 40% of the Earth's populated surface using its particle beam weaponry.