Quote Originally Posted by MarcusAureliusAntoninus
You mean Vindobona/Pannonia and the Ak-Ink/Eravacouw border that seems a bit odd? Segestica/Pannonia-Illyrica is quite far from the Danube and already has a river just inside its border.

I like having rivers as borders too, but for some peoples rivers just weren't the borders. Some tribes lived along a river and controlled both sides, so the territory was made in such a way. The Romans (and maybe Makedones earlier) were the ones who decided that the Danube would be the border.
Hmmm... makes sense. I what I have done so far is to roleplay that the area across the river is a demilitarised zone under surveillance, and it works well. The devestation penalty from enemies across the rivers are always annoying though.