are you playing the Stormbringer role playing game from Chaosium?
that is a fantastic game, and if you can get hold of the rule book, there are some basic descriptions of the nations (enough to get the feel of them)
try
here to see if there is somewhere near you that stocks Stormbringer (and check out the BRP &Stormbringer downloads as there are a couple of maps you can download and there may be some more background info on one or two of the nations