Which Group Invaded Mexico And Played A Role In The Downfall Of The Aztec? The French The Portuguese The Conquistadors The Pochteca. Initially mistaken for gods, cortes attacked the aztecs using gunpowder and horses. The group that invaded mexico was the conquistadors, particularly known for their role in the spanish colonization under leaders like hernán cortés.

In 1519, hernan cortes and 550 sailors arrived in mexico, forming alliances with aztec enemies. The group that invaded mexico was the conquistadors, particularly known for their role in the spanish colonization under leaders like hernán cortés. Initially mistaken for gods, cortes attacked the aztecs using gunpowder and horses.