Tesrat Republic

The Tesrat Republic is a state located in the center of the known galaxy. It is officially a multi-ethnic nation, but the majority of its people are Tesrats. It encompasses 14 worlds and has a population of over 19 billion. The Republic's political structure is based on the Surben Republic and Terran Federation. Its capital and most populous world is Tefnir.
Following a brief period of independent interstellar exploration during the Tesrat Polity in the early 2000s, the Tesrat systems were occupied and annexed by the Ur-Han Empire. The Tesrat were part of the Empire from 2039 to the Great War, with only a brief period of independence during the Mer-Sam'ti War. Following this war the Tesrat were granted wider autonomy in the form of the Tesrat Duchy. However a strong nationalist movement emerged again in the late 2500s, and became one of the primary causes for the Great War. Initially siding with the Ur-Han rebels, the Tesrat were able to gain de facto independence, but were unable to press for peace. They were occupied by the newly-involved Terran Federation over the course of 2639 and 2640, and in 2640 the Tesrat Protectorate was formed. Effectively a Terran puppet-state, the Protectorate was largely free to deal with its own internal affairs for the time being. The Terran ambitions of reducing the Protectorate into a Terran dominion were foiled by the involvement of the Surben Republic and Mirdesh Confederacy. In the Treaty of Mars, the Terran Republic agreed to withdraw from the Tesrat Protectorate once a newly-written, democratic constitution was put into place. The Tesrat Republic was proclaimed in 2653, and the Terrans withdrew in 2655. Nevertheless, the Tesrat remain closely aligned with the Terran Republic to the present day, largely due to the large amounts of aid from the Terran state and Terran corporations following the destruction of the war.
The Tesrat Republic is one of the most developed and wealthiest countries in the galaxy. Due to its central location between other nations, a majority of galactic commerce flows through it. Terran aid through the CECOR system helped the country recover an infrastructure and rebuild better than most of the other countries involved. Additionally, the Tesrat capital of Tefnir became the de facto capital of many galactic institutions such as the UCO, ECDA and GGBS.