The Republic of Combine Overwatch Soldier 18 is a massive, safe nation, notable for its barren, inhospitable landscape, frequent executions, and suspicion of poets. The compassionate, hard-working population of 2.106 billion Combine Overwatch Soldier 18ians are highly moralistic and fiercely conservative, in the sense that they tend to believe most things should be outlawed. People who have good jobs and work quietly at them are lauded; others are viewed with suspicion.

The medium-sized government juggles the competing demands of Defense, Administration, and Law & Order. Citizens pay a flat income tax of 34.4%.

The Combine Overwatch Soldier 18ian economy, worth 90.2 trillion Ration Credits a year, is fairly diversified and led by the Book Publishing industry, with major contributions from Information Technology, Beef-Based Agriculture, and Uranium Mining. Black market activity is notable. State-owned companies are common. Average income is 42,853 Ration Credits, with the richest citizens earning 6.7 times as much as the poorest.

A new guerrilla marketing campaign for tap water involves government agents spraying random citizens with hose water, a referendum must be held in order for any new law to be passed, lobbyists are trying to convince government to recategorize most natural disasters as "non-critical naturogenic inconveniences", and fans doing the wave routinely disrupt the finals of Go tournaments. Crime, especially youth-related, is totally unknown, thanks to a well-funded police force and progressive social policies in education and welfare. Combine Overwatch Soldier 18's national animal is the Antlion, which teeters on the brink of extinction due to widespread deforestation.

Combine Overwatch Soldier 18 is ranked 200,373^rd in the world and 3,425^th in eta for Fattest Citizens, with 9.32 Obesity Rate.