The Allied Worlds is literally a grand alliance of parallel worlds. They exist primarily in opposition to the many One Nation Empires that exist in many of the parallel worlds. The Allied Worlds are governed by a constitution known as The Accords.
There are several sub-alliances of significance that govern certain regions of spacetime. All tend to share the naming scheme of Allied “name”.
Allied Earths
A name for the interdimensional alliance between various unified Earth-based governments, such as the Earth Federacy.