I'm currently playing a campaign as Sweden, and I'm, of course, taking over the world. I've already taken care of much of the Danish, and I'm used to seeing the enemy units flee once their numbers have been reduced significantly. However, with the Poles, it seems like a completely different story.
I recently managed to wipe them out, but in the process, had to absolutely destroy units before I was rid of them (they just wouldn't break ranks, except for artillery). When I say "destroy" I don't mean reduce to 10, 5, or even 1 person. No, they would just keep on fighting, down to the very last man.
This leads to my question: do different nationalities have different levels of morale? Were the soldiers I was fighting more resilient because they were Polish (Poland-Lithuania)? Could it also have to do with the fact that they were defending their last stand and capital?