"Propably a good idea, especially if we leave it with the captain of the guard. It'll be good for moralle to let the men see that thier leaders are competant and proactive. Unless we find a local general or tactician"

Acanous takes a furitive glance around for a deus ex machina
[Roll 1d20-2] (Spot)

(if that fails to uncover something)
"If needed, I do have some experience solidifying defensable locations. I could take a once over of the map and a wander about town and see about fashioning a decent bulwark out of it."