Siege (Perception) Siege is tearing things down as opposed to Engineering which is building things up. The skill is the characters ability to gauge the strength of a structure, and find the best way to breach it. Spending time observing the target building will also allow the character to determine the number of guards, shifts in patrols, possible escape routes as well as the best direction for an attack. The skill also allows the use of Siege Engines, such as catapults, and the ability to aim the engine. The skill is considered a Bugei Skill. Both the Book of Sun Tao and Akodo's Leadership referred to siege as a situation to be avoided at all costs.