Their success was the result of several factors: military technology, warfare goals and tactics, epidemic diseases, and the loose structure of the Aztec empire" (Berdan). The spanish brought with them great weapons. They also attacked at a time of political unrest in the Aztec Empire. But their greatest weapon, the one that brought them the great victory, was the diseases they brought to the new world. "The Spanish conquest did not destroy Aztec culture, nor did it wipe out the Aztec people. Rather, the Aztec territory became a colony of the Spanish empire, called "New Spain."