I understand the basis for the rule, so that a player is not able to make multiple nations to help out himself (AKA sending himself aid or the "perfect" trade) but why if the nations are not interacting are they still wrong. I mean ya the rule states they are wrong but wouldn't it make more sense just to ban them if they are interacting between them??? Wouldn't it allow for instance two brothers (who know not to interact) to both play the game. Isin't the point to have fun and have as many people as playing as possible????