The Earth Alliance is the official government of Ba'lonin Earth and its colonies. It is a major galactic power and a member of the Alliance of Nations. The Earth Alliance is a multi-tiered democratic republic, governed as a whole through a balance of power between a regionally elected representative body called the Senate, a President who is elected by the Alliance population as a whole, and a Judicial branch. Both the Senate and the President have their offices in the Earth Alliance capitol, which is known as Earthdome. Earthdome is located on Ba'lonin Earth in the city of Geneva, Switzerland.