Troops refer to the army a legend commands during combat. Troops can be trained in the garrison, and require gold and 3 basic resources: food, wood, and copper. Troops stationed at cities further consume food on an hourly basis. Some troops require the construction of the armoury, and skills to be researched at the university (e.g. Leadership and Conscription).
Training special troops (skilled, expert, and master) require a famous city and other additional requirements.