Also another question related to the problem, why is there so many bandits and looters in Calradia. I know this is a fantasy world but I doubt there was actual hundreds of bandit armies roaming Europe back then. (I know there's probably exceptions but you know what I mean)
The problem is that when Lords lose a battle and manage to escape, whenever the are left with less than 10 soldiers, bandits destroy and capture them thus slowing even more the replenishing of this lord's army and accelerating the snowball effect for the winning faction.