United Centauri Republic
The United Centauri Republic, commonly known as Alpha Centauri or Centauri, Is a Non-Legacy Nation, a Great Power, and a Potential Superpower located entirely within the Solar Subcluster. It is the Orion Arm's ninth-most-populous nation. Its sole system, the Alpha Centauri Planetary System, is among the most heavily populated, and industrialized, systems in the entirety of the Orion Arm. It is a member of the modern League of Nations, African Union, the foremost member of the Solar Treaty Organization, and a participant of the Joint Solar Authority.
History
The Cold War
In 2208, the Commonwealth of Vega declared war on the United Centauri Republic, beginning the First Solar War. This conflict would last for five years, resulting in an armistice recognizing Vegan territorial gains and sovereignty.
In 2229, what would become known as the Second Solar War began with an invasion of the Sirius Federation by the Commonwealth of Vega. Joining Vega were the Republic of Vesta, United States of Juno, Silvanus Colonial Republic, Barrosa Colonial Republic, Jarandi Colonial Republic, and Kassar-Antrali Colonial Republic. Joining Sirius were the nascent Solar Treaty Organization members of the United Centauri Republic and United Provinces of Tau Ceti, as well as the Apollo Colonial Republic. Although the war initially went in Vega's favor, meeting a high-water mark in 2231 with the destruction of the bulk of the United Centauri Republic fleet in the Battle of Cygnus, the war would be brought to a decisive end that same year by the intervention of the German Reich.
The United Centauri Republic is one of three Great Powers within the Local Supercluster, along with the Federative Republic of Brazil and the Republic of India. Its role within Orion astropolitics is defined by its strategic position bordering major translight routes, and its emerging status as a major power.