If we can get it done quickly, shore up/create the missing wall section on the forest side of our town ASAP, even if it has to be temporary wooden palisade.
Our beloved Monolith can become its tower shape across the bridge again, denying them easy river access. Our other guardian can remain atop the hill, WITHERING THEIR SIEGE ENGINES WITH HOLY FIRE.
The one by the river.. he can remain there, harassing them as they approach, filling them with death.. regrettable death.
Kob wolfriders, hide and form up behind the southwest gate and northeast by the tower, prepare a counterstrike manuever.
Bowbolds line the river and any trees we have for range increases, and spearbolds man that newly-made siege tower, aim it for the enemy siege lines.
This shall be.. our finest hour.