Brief description

Simple fortifications are enhanced defensive structures designed to protect a perimeter, settlement, or camp from external threats, such as predators or hostile raids. They represent a step up from basic shelter, focusing on security rather than just weather protection.

Use / Function

Perimeter Defense: Create a physical barrier to stop or slow down intruders.
Territory Control: Clearly define the boundaries of a safe zone.
Observation: Provide elevated positions to spot threats from a distance.
Scale: Settlement / Camp.

Operating principle

They rely on physical obstruction and tactical advantage.

Obstruction: Walls, palisades, and ditches force attackers to stop or funnel into specific areas (choke points).
Elevation: Watchtowers or raised platforms allow defenders to see further and attack from above with gravity on their side.

How to create it

Site Selection: Choose high ground or an area with natural barriers (cliff, river).
Perimeter Clearing: Clear brush and trees around the site to remove cover for attackers.
Earthworks: Dig a trench or dry moat around the perimeter. Use the excavated earth to build a berm or raised bank behind the trench.
Palisade: Drive sharpened logs into the top of the berm or directly into the ground, lashing them together for stability.
Gates: Construct a reinforced gate that can be barred from the inside.
Technical level: Intermediate.

Materials needed

Essential:
- Logs/Timber: For palisades, gates, and towers.
- Earth/Stone: For berms, walls, and trench reinforcement.
Tools:
- Shovel: For digging trenches and moving earth.
- Axe/Saw: For felling trees and sharpening logs.
- Hammer/Mallet: For driving posts.
Substitutes:
- Thorny Bushes: Can be piled up to create a “boma” or defensive hedge.
- Stone Walls: Dry-stacked stones if wood is scarce.

Variants and improvements

Wooden Palisade: A continuous wall of vertical logs.
Earthwork/Rampart: A raised bank of earth, often topped with a palisade.
Ditch/Moat: A trench aimed at breaking the charge of an attacker.
Watchtower: A simple wooden tower for lookout purposes.

Limits and risks

Fire: Wooden fortifications are vulnerable to fire.
Maintenance: Wood rots and earth erodes; constant repair is needed.
Siege: A static defense can become a trap if the defenders are surrounded and cut off from food/water.
Blind Spots: Poorly designed walls can create areas where attackers can hide close to the perimeter.