The Imperium of Tarsonis is a titanic, environmentally stunning nation, ruled by Keslia Kast with an even hand, and remarkable for its museums and concert halls, compulsory military service, and punitive income tax rates. The compassionate population of 19.551 billion Tarsonians are fiercely patriotic and enjoy great social equality; they tend to view other, more capitalist countries as somewhat immoral and corrupt.

The large government juggles the competing demands of Education, Environment, and Healthcare. It meets to discuss matters of state in the capital city of Elumarnia. The average income tax rate is 57.8%, and even higher for the wealthy.

The large but underdeveloped Tarsonisian economy, worth 647 trillion Scripts a year, is quite specialized and led by the Tourism industry, with major contributions from Information Technology, Furniture Restoration, and Book Publishing. State-owned companies are common. Average income is 33,094 Scripts, and distributed extremely evenly, with little difference between the richest and poorest citizens.

Red Cross demand for body bags is rising while sutures go unused, enemy navies sail within bombardment range of major coastal cities with impunity, elementary school students are required to master Bach's Chaconne in D before graduation, and hundreds of sailors ride the good ship Keslia Kast day after day. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Tarsonis's national animal is the Phoenix, which soars majestically through the nation's famously clear skies, and its national religion is Roman Catholicism.

Tarsonis is ranked 20,058^th in the world and 3^rd in The Koprulu Sector for Largest Populations, with 19.6 billion capita.