What happened with the battle against the Aztecs and The Spaniadrs?

well the spanis brougth like 100 thousand native to concure Tenochtitlan and the aztecs almost won even after being ravaged by small pox.

the aztec would have won if Moctezuma had been less reluctant to fight Cortés .Moctezuma people accidentally killed him and replaced him with his brother who died from smallpox so lack of leadership was a problem