It's something I've noticed for fun once or twice but it's a little silly when you see a Caravan from the Tarth aiming to trade with the Capitar capitol...
And yet they seem to be going to the frontlines and visiting Kraxis' Capitol instead.
http://img585.imageshack.us/img585/2593/rytn.jpg
(The two red circles on the mini-map is to indicate where the two cities are)
