This small building can be best described as the assembly hall for the lower classes of your cities; it is where the decisions of government as well as resolutions to engage in conflict are passed. For this reason, the Peasants' Commune serves as the rallying point for melee levy units. While they aren't as powerful as the more professional units raised from the Barracks, they are still useful, first as a meat shield, and secondly, they can be used to man towers, castles, and cities to boost their fighting strength.