Ko'raan

Ko'raan is a planet in the neighboring Solar System, it's the home of both The Protectors of the Universe and the Elemental Corps. It's a technologically advanced city, filled with a large amount of aliens of different species.

History
Ko'raan was the original home of The Protectors of the Universe. A small handful of their race managed to survive a nuclear war, they decided that no other race should subject themselves to this, or to each other. They created the Elemental Corps, and used their homeplanet as a new base for their organization.