Pictured is a wooden palisade, these would have been used quickly in field defense. They're very easy to make and very quick to put up which made them a valuable defensive tool when you lacked permanent defensive structures.
During the medieval ages, garrison defense was a crucial part of protecting a castle or fortification. A garrison was a group of soldiers stationed in a fortified structure to defend it against enemy attacks. The garrison typically consisted of a mix of soldiers and officers, including archers, crossbowmen, knights, and other trained combatants. The garrison's primary goal was to protect the castle and the surrounding land from invaders, which required a mix of offensive and defensive tactics.
One of the key defensive tactics used by garrisons was the construction of strong walls, towers, and palisades. Palisades were wooden fences made from sharpened logs, which were erected around the castle to make it more difficult for enemies to approach. These structures were designed to be difficult to breach, and they provided a secure vantage point for archers and other defenders. Garrisons also used a variety of weapons and tools to defend their position, including boiling oil, stones, and arrows. In addition to defensive measures, garrisons also conducted regular patrols around the castle and its surroundings to monitor for any potential threats. Overall, garrison defense played a critical role in the medieval period, helping to protect against enemy attacks and ensuring the safety of those living within the castle walls.
Palisade