Terran Commonwealth Alliance

The Terran Commonwealth Alliance or TCA is the main inter-colonial governance of trade, commerce, and military power of Humanity shared throughout the Terran Sector's worlds. While there is some debate over the first 'true' creation of the TCA, official records show was actually first established in an official sense in 2700 to bring together previously independent Human colonies and have them represented under one banner, which then allowed humanity to better function within the Galactic Confederacy; Prior to 2700 each colony was represented by a separate panel, but with the Earth Global Alliance being the lead factor, some claim it was the date of 2501; when the EGA officially joined the Confederacy and begot the pooling of Human colonies. Some also say it was actually founded after the fall of the Proteus Corporation and the Earth Independence Party in 2323.

Structure
The TCA primarily functions as an extension of the Global Republic of Earth throughout the Terran Sector with Earth and Sol at it's centre, but with shared functions in social equality, science, exploration, trade, organisation and military power; as such each planet functions semi-autonomously and is governed by a president.

The World Presidents act as representatives in TCA's panel and any one of 4 can represent the entire TCA in the greater Galactic Confederacy but as Earth is the primary Homeworld for the Human species, the Earth president must always be present.

It is split into 29 prefecture systems including.
 * 1) Sol - The TCA's centre which includes Earth, Luna, Mars and others.
 * 2) Sirius - This includes the colonies of Novia (previously Terranovia) Tellus, Strattus and others)
 * 3) Proxima Centauri - Blackwood, Firestone (mine)
 * 4) Alpha Centauri - Innes (mine, research outpost), Elkin (terraformed)
 * 5) Barnard's Star - Osiris (remained truly independent until 2950)
 * 6) Luhman 16 - Osten, Gillon (both mines with underground habitats)
 * 7) Gliese 752 - Lordfort (Trash planet) Kilngate (Both quarantined under the G752 Act of 2352)
 * 8) Vega - Valhalla, Múspell
 * 9) Epsilon Cassiopeiae - Segin II, Segin IV
 * 10) Wolf 359 - Elmore