Answer:
Superior weapons than the natives.
Horses.
Alliances with the enemies of the Aztec
Step-by-step explanation:
Hernan Cortes was able to defeat the Aztec Empire in 1521 because of the superior cavalry, weapons, and firearms. The Spanish had steel weapons, horses, guns, and cannons, which was an advantage to defeat the Aztec army. Horses helped in winning campaigns because of cavalry, which gave a fatal attack on the Aztecs people without getting any hurt. Aztec conquered by Spanish Conquistador Hernan Cortés by killing thousands and destroying civilization. The Aztecs also died by getting exposed to diseases that the Spanish brought such as smallpox, measles, malaria, typhus, and cholera. Hernan Cortes aim was to conquer and obtain wealth.