Why were small bands of conquistadors able to conquer huge territories?

Small bands of conquistadors were able to conquer vast territories primarily due to their advanced weaponry, such as firearms and steel sWords, which gave them a significant advantage over indigenous populations. Additionally, they often exploited existing rivalries among indigenous groups, forming alliances that facilitated their conquests. The spread of diseases like smallpox, to which native populations had no immunity, also decimated local communities, weakening their resistance. Lastly, the conquistadors were driven by a strong sense of purpose and ambition, motivated by the promise of wealth and glory.