[quote=@Mihndar]
I have no idea why Yamatai only has 7.5 million people, that seems incredibly low in comparison to everyone else. Eisenkreis is kind of low but then again they are mostly inland it seems, so lower population density.
[/quote]

Nice to see all the claims together, actually helps quite a bit. As for why Eisenkreis population is low, that's because it's only counting five of the states. Kzechverin is the largest of the states, and likely has at least twice the population, though is very backwards in almost every respect. They're pretty much the people charging into battle on horseback and under a feudal system. Despite coming under the Hegemony, they still retain their form of government, in that it's a Noble Republic in which only the landlords(I.E. nobility such as princes) can gain the throne of the country and vote for who they wish to be ruler. It's a bit wonky, but I'll make it work.