I can see a region having better units because of the geography in some cases. A region that's all flat and open would be better suited to cavalry units for example, so the residents might focus on that for obvious reasons. This sort of thing doesn't really apply in all cases. As puppeteer suggested, what the residents of the region have focused on for whatever reason based on the lore will play a part in it too, not just geography. Expect some of both I'd say.
Last edited by Josh Warner : 10-20-2009 at 05:02 PM.