Union of Allied Planets

The Sino-American Alliance (usually just called "the Alliance") is the governing power of the star system that is the setting for the Firefly series.

Organization

The exact nature of the Alliance isn't clear, but it appears to be a kind of oligarchy run by wealthy families and powerful corporations.

Threat Assessment

The Alliance has a fleet of warships, some comparable to cities in size. Many are multi-role ships capable of directly engaging other warships and deploying starfighters. Their speed, power resources, and firepower are all unspecified.

While they control a large star system with numerous colonized planets and moons, the Alliance has no faster-than-light propulsion technology, limiting their influence to their home system. This limitation makes them a negligible threat to interstellar civilizations.