The Umbakians would build a string of 4 settlements connected by straight line rounds forming a square. They would choose the best farmland to be inside the square, and the terrain to allow the nearest to straight 5-15 mile road length. That way the best and core crops could be better protected. One of the villages would be a town, usually with a garrison and fortified place for people to retreat to. This was (and still is for the most part) the primary form of building settlements for thousands of years.