2 Metaphors for stockaded

The stockade was an immense security to the people of the Hut.

In a tangle of duties a man must seize the solitary clear one, and there could be no doubt of what mine was, I must try for the Tidewater, and I must try alone, Shalah had the best chance to get through, but without Shalah the stockade was no sort of refuge.

2 Metaphors for  stockaded