I don't remember what I ate last night
but I can spout off obscure rules to all sorts of game like nobody's business!
...it just when there is a battle and the cars says so? Because I checked all the hunting deck and no card says that you have to reduce the palisade level but in the rules it is written that you have to reduce the palisade level during the hunt if applicable.
There are a couple beasts in the Adventure and Event decks that cause you to lose palisade levels.