The THEE Plan of Mentat Jon is a gargantuan, environmentally stunning nation, remarkable for its compulsory military service, parental licensing program, and suspicion of poets. The hard-nosed, hard-working, devout population of 30.882 billion Mentat Jonians have some civil rights, but not too many, enjoy the freedom to spend their money however they like, to a point, and take part in free and open elections, although not too often.

The large government juggles the competing demands of Defense, Law & Order, and Education. It meets to discuss matters of state in the capital city of The Mentat training city. Citizens pay a flat income tax of 54.8%.

The very strong Mentat Jonian economy, worth a remarkable 2,186 trillion Spices a year, is broadly diversified and led by the Arms Manufacturing industry, with significant contributions from Beef-Based Agriculture, Basket Weaving, and Tourism. Average income is 70,798 Spices, with the richest citizens earning 5.9 times as much as the poorest.

In a desperate bid for cheap airfare Mentat Jonians can be seen jogging in a rubber suit just before flying, the nation's weary schoolchildren excel at sport but must count scores on their fingers, there is something rotten in the state of Mentat Jon, and Max Barry finally has time for writing books after NationStates was recently outlawed. Crime, especially youth-related, is totally unknown, thanks to a well-funded police force and progressive social policies in education and welfare. Mentat Jon's national animal is the Sand Worm, which is also the nation's favorite main course, and its national religion is Knowledge.

Mentat Jon is ranked 179,461^st in the world and 5^th in Dune for Largest Insurance Industry, scoring 373.36 on the Risk Expulsion Effectiveness Rating.