How were the Spanish able to defeat the mighty Aztec and Inca empires?

The Spanish were able to defeat the Aztec and Inca empires primarily due to a combination of advanced military technology, such as firearms and steel weapons, and the strategic use of alliances with indigenous groups who opposed the empires. Additionally, the spread of diseases like smallpox decimated native populations, weakening their resistance. The Spanish conquistadors, led by figures like Hernán Cortés and Francisco Pizarro, capitalized on internal divisions and political strife within the empires, allowing them to conquer these vast territories with relatively small forces.