The Ur-Quan Hierarchy, also known as the Hierarchy of Battle Thralls or simply the Hierarchy, is an interstellar empire created by the Ur-Quan Kzer-Za to manage their conquests that perpetuate the Path of Now and Forever. In our region of space, the Hierarchy consists of the Ur-Quan, seven Battle Thralls and at least four Fallow Slaves, including the Humans. As the Kzer-Ah become embroiled in the Doctrinal War against the Ur-Quan Kohr-Ah, the New Alliance of Free Stars is established in 2155 and the Hierarchy begins to unravel as Battle Thralls start defecting or attacking one another.