Commonwealth of Planets

The Commonwealth of Planets, or often simply The Commonwealth, is a regional middle power in the Milky Way galaxy, specifically the Orion Arm. It was formed in 2112 by the United Kingdom of Earth and its Colonies in Rebellion following the Great War of Rebellion. It has no direct borders, as it lies within the Seventh Forbidden Zone as prescribed by the Multilateral Treaty of Non-Interference. However, the Altarian Empire lies approximately 5 light years away, and the Cytherean Federation lies approximately 7 light years away, and together these two factions border the Seventh Forbidden Zone.

The Commonwealth is a unitary state governed under a constitutional monarchy system. Its capital is Stockholm supporting all branches of government, as well as the Commonwealth Royal Naval Academy. The Commonwealth was formed when the United Kingdom of Earth was reorganised, ending the absolute rule of the Monarch of the United Kingdom of Earth, transferring some of their powers to the Parliament of the Commonwealth of Planets and the Chancellor of the Commonwealth of Planets. These changes led to King Garth being known as "Garth the Reformer". There were six founding planets: Earth, Mars, Altaria, Capricos, Atropos, and Vesta. In addition the dependent Earth territory of the Moon was part of the signing of the Commonwealth Treaty. The original composition of the Commonwealth was the inspiration of its flag. Today, twenty additional planets have joined the Commonwealth, bringing the total membership to twenty-seven.

The Commonwealth is composed primarily of humans, which constitute 82% of its population. Cytherean refugees make up over 15% of the population and Altarian immigrants just under 3%. Intellia, due to its border location, is the only planet without a majority human population, and has a population that is more than 57% Cytherean.