Earth is the third innermost planet in the Solar System and the origin of mankind, and did not require terra-forming. Eventually it was conquered by its colony sent off to the Moon. It stayed under Society's rule since its establishment, becoming part of the Core. Two Earthborn families died in the conflict generated by Darrow in the events of Golden Son.
By the time of the Conquering, Earth was divided into around 20 nations that were mutually suspicious of each other. Below are some countries that existed from before.
Indian Empire Edit
One of the last countries on Earth to fall to the Iron Golds.
Empire of the Rising RunEdit
Presumably referred to Japan.
Based somewhere on the east of the Americas with a naval fleet.