How does the king's adventure expand the territorial model?

1. Build various buildings outside the center or territory to improve the production, skills or defense capabilities of resources, and then expand the territory.

2. Let soldiers explore the border areas of the territory. The new areas they meet will be marked and opened, and citizens and buildings will be sent to the area.

3. Strengthen the city wall defense to avoid the enemy's attack, so as to protect the territory from erosion.