quality:corruption, stylistic:style_transfer, structural:summarization
Initial stages

It was approximately in the year 1504 or 1505 when the first large-scale conflicts between Mexico and Tlaxcala began. In this period, Moctezuma thought about placing the entire country under siege, understanding that most of it was surrounded by territories belonging to the empire. The ruler of Huejotzingo, Tecayahuatzin, sympathized with Moctezuma despite their connections with Tlaxcala and conflicts in the past, and through bribes and propaganda attempted to ally with Cholula and local Otomi populations to attack Tlaxcala, though with little success. The Tlaxcalans became greatly worried about this and began to grow suspicious of all allies they had fearing a betrayal, as Huejotzingo was one of Tlaxcala's closest states, as proven by its support at the battle of Atlixco. Moctezuma, however, had the disadvantage that many of his dominions surrounding Tlaxcala did not want to fight them, as many of them used to be their allies in the past even with all the promises Moctezuma made, and therefore his support was actually quite limited.

One of the first battles occurred in Xiloxochitlan (today known as San Vicente Xiloxochitla), where multiple atrocities were committed. Despite this, the Tlaxcalan resistance managed to hold out, and after a great struggle, the Huexotzinca armies were repelled, though during the fight the Ocotelolca commander Tizatlacatzin was killed. Many other smaller battles took place in other parts of the border, though none of them were successful.

In response, Tlaxcala launched a counter-invasion against Huejotzingo, knowing that the Huexotzinca had been severely weakened by their fights with the Mexica Empire; their towns were sacked repeatedly and the entire nation was put essentially under siege, and the remains of the nation were now cornered in the region around the Popocatépetl. The Huexotzinca became greatly worried and knew they couldn't win the war alone, therefore a prince named Teayehuatl decided to send an embassy to Mexico to request aid against the Tlaxcalans. According to historians like Durán, this embassy was sent in the year 1507, just after the New Fire Ceremony, while others date this embassy to the year 1512. The embassy informed Moctezuma about the Tlaxcalan counter-invasion, which had been happening for over a year by this point, requesting Moctezuma to do something about the situation to expel the Tlaxcalans from their land. This was not the first time the Huexotzinca had requested aid from Mexico for similar reasons, as the first time was actually around the year 1499, during the reign of Ahuizotl, though this previous request was denied. After consulting Nezahualpilli and the ruler of Tlacopan, Moctezuma agreed to help the Huexotzinca, despite the conflicts they had in the past, and sent a large number of soldiers to help this nation, while also allowing many of their refugees to stay in Tenochtitlan and Chalco.