Explain the strategies did Cortes and his allies use to defeat the Aztecs.

The element of surprise and other stuff.

Explanation:

They were able to enter the city. The Aztecs thought that Cortes was a god. Also they had guns, cannons, swords, and horses. They thought the horse wold eat them alive. Also, the Europeans brought diseases such as smallpox which weakened the Aztecs greatly and made the battle easier.