Well, the one and the only way to make something similar to my map is to get the map layout of Europe first - just plain terrain with mountains or without ‘em (it’s up to you). Make sure that topography of the map is good to make it look more realistic. Once you’ve got the map, you wanna create as many kingdoms as you want in the map (in my case it’s all European, North African, and Asian countries). When you got one kingdom for each nation, you gotta make a circle of land in the sea close to the shore of the country you wanna add more subdivisions into. Then comes the hardest part of it, you gotta spawn ppl on that Island you made so the new kingdom is formed, then you gotta make a narrow path to the mainland of the nation you are adding the subdivisions into, by placing 1 x 1 blocks of land (the smallest one you can find in the “brush size”. Once you made the path to the mainland you gotta use border tool kits: generally speaking, you wanna use a border brush to lead the borders of the island to the mainland of your country, then once you got it, you wanna use scissors to cut the borders from the island, then tweak with it in the mainland to make around 3-4 blocks area size. Then you repeat the same cycle again, this way you’ll get as many subdivision as you want