Ok, but if you're playing wolfen, then you usually have high AP units, see PoB or GoR, that arrive there the second turn, plus the Hunter is already there and then it is no story. You don't have to combat at all if you want, just hide from the enemy archers/mages moving on the opposite side and it's done. The enemy melee units can't kill your ones in just 1 turn (they still need the second to enter the circle and engage your units!) if you don't attack them (so that they can not attack you back!) and use the defending order.
While if the enemy is only melee units and want to have a vis-a-vis with your Wolfens... let's say that's not the best strategy around