Right now you can waltz your army past enemy towns and castles and go wherever you like. The enemy armies head for the least defended castles, no matter how many other castles and towns are in the way. Would it makes sense to institute a zone of control around castles and towns during war time, so that enemy armies can't just walk past?
Historically, you couldn't just march a large army around a castle because as soon as you do, the garrison comes out and raids your supply lines. For large armies, the destruction of the supply lines had devastating effects. Implementing supply lines might be asking too much, but implementing a zone of control should be simpler.
Maybe make the size of the zone scale with the size of the garrison+militia.
Or, maybe allow enemy armies to walk past the zone of control, but if they do, they incur a heavy penalty to food consumption so that they run out of food quickly.
Thoughts?
Historically, you couldn't just march a large army around a castle because as soon as you do, the garrison comes out and raids your supply lines. For large armies, the destruction of the supply lines had devastating effects. Implementing supply lines might be asking too much, but implementing a zone of control should be simpler.
Maybe make the size of the zone scale with the size of the garrison+militia.
Or, maybe allow enemy armies to walk past the zone of control, but if they do, they incur a heavy penalty to food consumption so that they run out of food quickly.
Thoughts?