Question about p218 in the section Updating the campaign map under Opportunity heading (my bold):
When a steading has enmity against a weaker steading they may attack. Subtract the distance (in rations) between the steadings from the steading with enmity’s defenses. If the result is greater than the other steading’s defenses +defense for each step of size difference (village to town, town to keep, keep to city) they definitely attack.
Looking at the text i bolded above, I don’t understand when the +defense is applied or to who.