The Hierarchy was an interstellar state with a government system that controlled a significant region of space in the Delta Quadrant, near that quadrant's border with the Beta Quadrant. Dominated by an species of unknown name, the Hierarchy has a sizable pseudo-military space force led by the Hierarchy Central Command. (ST reference: Star Charts; VOY episodes: "Tinker, Tenor, Doctor, Spy", "The Void", "Renaissance Man")