Causes of the Defeat of the Aztec

-alliances with other tribes helped the Spanish Malintzin an Indian woman helped Cortez, she helped him work with others who didn't like paying tribute
-better weapons GUNS helped acquired through trade in Europe from China
-Spanish also brought horses Aztec had never seen horses
-geography was hurtful the Spanish blocked the causeways, bridges and causeways this cut off drinking water, thousands starved
-Spanish brought smallpox the Aztec could not fight both the disease and the Spanish