AidanT's Why was it so easy for the Spanish to "colonize" Latin America when there were such strong civilizations already there?

Why was it so easy for the Spanish to "colonize" Latin America when there were such strong civilizations already there?

It was so easy for the Spanish to "colonize" Latin America because of a few of reasons. First, the Latin American civilizations' spears didn't compete with the Spanish's guns. Second, the Spanish had horses which was a form of transportation that the Latin American people had never seen. Finally, the Spanish brought diseases that they were immune to, but killed or made many Latin American people ill. Those are the reasons why it was so easy for the Spanish to "colonize" Latin America.
Sources: Wikipedia