text: Campaigns and battles Once the decision of going to war was made the news were proclaimed in the plazas calling for mobilization of the army for several days or weeks in advance. When the troops were ready and any allied cities had been alerted and had given their consent to partake in the campaign the march began. Usually the first to march were the priests carrying the effigies, the next day the nobles marched led by the Tlacochcalcatl and Tlacateccatl. And on the third day the main bulk of the army set out with the Tenochca marching first followed by the warriors from the other cities in the alliance (Tepanecas and Texcocas) and lastly the allied forces from other cities, some of these subject cities would also join in gradually during the march as the army passed by their cities. Thanks to the efficient system of roads maintained throughout central Mexico the army marched an estimated average of 19–32 kilometers per day. The size of the Aztec army varied considerably from small contingents of a few thousand warriors to large armies with tens to hundreds of thousands of warriors. In the war against Coixtlahuacan the Aztec army numbered 200,000 warriors and 100,000 porters. In 1506, an Aztec army numbering 400,000 men conquered Tututepec, a Mixtec kingdom.