Myaasia holds a great and powerfull Central Kingdom based around a central lake that is big enough to be called a sea being more than 1000 miles across at widest point, and connected to numerous rivers and other smaller lakes.
Capital of Central Kingdom is Vermol
Other cities:
Abur on a huge island in middle of the inland sea.
Central Kingrom is dominated by the highmen though most people are common men. There is a sizeable minority of shapeshifters.
The armies of the central kingdom usually move by ship on lakes and rivers and most of its power is within a few days march of water. They are not all that well equipped, but they are well trained and have unmatched support in form of high number of magicians for command and control. The armies thus allmost allways know where the enemy is and favor hit and run tactics. These are specially successfull against Northerm Empire forces.