It's not really something we can make modable, I'm afraid. Besides, if we made retreat into hostile territory impossible Xenophon's ghost would haunt us for all time![]()
Well, he didn't haunt you for allowing this in the HoI series, did he?
Plus, there are other flaws in the existing system. It is ridiculous for a large army to not be able to retreat to a friendly province, because a 1000-man brigade has started occupying it. Imagine this:
French general: men, the Germans are hitting us hard. We will retreat to Cologne.
French soldier: isn't Cologne in German hands, while there is a level-3 fort there?
French general: Yes, but there are no enemy armies there.
French soldier: Sure, but retreating to the German interior will rapidly kill us from attrition. Wouldn't it be wiser to retreat to Alsace? It is owned and occupied by us, plus it is heavily protected by forts. Thus, our 50-brigade army will be able to recover there.
French general: We can't retreat to Alsace. The HQ informed me that an army of 1,000 angry Germans have arrived there and are laying siege to the province...
French soldier: 1000 men? You can't be serious. We are 50,000.
French general: I can't break the game rules. Off to Cologne!
I love the game, but I consider this situation irrational (and gamey, since it allows a human player to easily destroy huge stacks of enemy soldiers). I have a self-imposed rule of not sending 1-brigade armies to encircle enemy hordes, but I would cry out "Θάλαττα! Θάλαττα" (the sea! the sea!) if paradox made some adjustments.