

Millitary engineers responded by building new structures that were less susceptible to cannon fire and by mounting cannon within these structures to augument their defensive positions along coasts, at important river crossings, and at other strategic points. Their high vertical walls were particularly susceptible to direct cannon fire aimed at their base. They are available to the Byzantines, the Chinese, the Koreans, the Spanish, the Teutons, and the Turks.īy the end of the Middle Ages the development of cannon had changed military engineering by making standard castles obsolete. Each Bombard Tower cost 125 Stone and 100 Gold to build, and can only be built by some civilizations. They are considered a Gunpowder Unit, so requires Chemistry to be researched from the University beforehand, as well as its own technology which costs 800 Food and 400 Stone thereafter. Bombard Towers are powerful defensive structures in Age of Empires II available in the Imperial Age.
