Why were Cortes and Pizarro able to conquer the incas and Aztecs fairly easily?

Cortes and Pizarro were able to conquer the Aztecs and Incas relatively easily due to a combination of factors, including the use of superior military technology, such as firearms and steel weapons, which overwhelmed indigenous forces. They also exploited existing rivalries among indigenous groups, forming alliances that weakened the Aztecs and Incas from within. Additionally, the spread of diseases such as smallpox decimated native populations, significantly reducing their ability to resist conquest. Lastly, the charismatic leadership of both conquistadors played a crucial role in rallying their forces and instilling fear in their opponents.