The Unified Coalition of Governments, also known as the UCG, was an inter-species and interstellar organisation that aimed to facilitate cooperation in galactic law, galactic security, economic development, social progress, sentient rights, and the achieving of galactic peace. The UCG was founded in 2555 after the Human-Covenant War to stop wars between nations, to provide a platform for dialogue, and to ensure that peace remained between the known sentient species of the galaxy.