The United Democratic Republic of Nivenia B is a Unitary regime founded by former Planetary Coordinator (and faction leader) Cameron Moss, who declared independence from the Nivenian Empire under the guise of escaping the "heavy tax burden." He then declared himself the "president" of the new nation, declared to have elections regularly, and promptly suspended elections under the guise of a state of emergency. The nation is now fighting the Nivenian Imperial Government in what has come to be known as the Third Nivenian War of Reunification.
The United Democratic Republic of Nivenia B occupies the space within roughly a dozen astronomical units of the secondary of the Nivenia System, as implied in the name. Its capital is the gas giant Nivenia B3, and it has a population of roughly eight quadrillion. While this is more than an order of magnitude less than the Nivenian Empire at large, most of the Nivenian Empire's old shipyards were inside of the seceding territories. This makes the United Democratic Republic of Nivenia B extremely powerful militarily, when compared to their population.