Final answer:
Hernán Cortés brought around 400-500 soldiers with him when he invaded the Aztec capital city of Tenochtitlan.
Step-by-step explanation:
Hernán Cortés brought several soldiers with him when he invaded the Aztec capital city of Tenochtitlan. While the exact number is not known, it is estimated that he had around 400-500 soldiers. These soldiers were armed with metal armor, steel swords, horses, and cannons. Cortés and his men were able to defeat the Aztecs by uniting with local tribes who were also opposed to Aztec rule.