After the end of the Second Drozathi War Mankind had taken control of almost every planet in the system. In order to prevent future combat and bring order to the Trinity System the United Federation was formed as the ruling inter-planetary government.
Under the Federation the various planets were still given large amounts of autonomy, and each planet had a representative in the Federation Senate, which was housed in the capital on Gaia.
The Federation lasted for 250 years, and supporters of the Federation claim that they were the most peaceful times in the history of the system. About 20 years ago the Federation fell apart in what has become known as the Secession Wars. Even though the wars and the subsequent Articles of Secession officially put an end to the United Federation, many consider the Articles to be illegal and illegitimate, claiming the Federation is still alive and strong. Many of these supporters are former Federation military, and there is concern that they may try to regain control of the Trinity System.