The Middle Kingdoms is not, in any official terms, one country. It is, in fact, a portion of land which is divided into many countries who’s borders are ever-shifting due to constant warfare. These countries can pop up overnight and disappear just as quickly. Prudent, martially -minded residents form mercenary banners, willing to fight for any King, Baron or Warlord with enough cash to pay them and enough of a promise of safety to see them return home at the end of the day.
The people here are as restless as the borders, used to the constant changing of leadership and landscape, they do what they must to survive. The fields and forests of the land are under constant threat of being turned into a bloody battlefield, no-one who lives in the Middle Kingdoms is there to have a quiet life.