Most famous for containing the homeworld of humanity (Earth), all of the human descended humanoids can trace ancestry to this world. Politically it's less on the galactic stage as the only government in the system is the xenophobic Solar Republic, which tends to follow a policy of isolation although it did lend support in the recent Birthright War; this was after Sol had been invaded by the Nall and had fought under grueling circumstances until they received support from the OATO worlds.