Tinto Republic
Tinto used to be a member of the Jowston Alliance, but decided to seek its own destiny after the Dunan Unification War. It has virtually no arable land, but generates tremendous income through mining. The Tinto mines also produce extremely rare gemstones called "Water Gems," which are necessary for various magical applications, such as the fabrication of rune crystals.
The Tinto Republic has been in conflict with Grassland tribes many times in the past, and continues its campain of aggression into the Grasslands.
A nation that is selfish to the end. Interestingly the government is run by the miner's guild, which makes it sort of like a socialist republic.