In what ways were the defeats of the Aztec and Incan empires similar and in what ways were they different?

The defeats of the Aztec and Incan empires were similar in that both were significantly impacted by European diseases, which decimated their populations and weakened their societies before the arrival of Spanish conquistadors. Additionally, both empires faced overwhelming military force and advanced weaponry from the Spanish, including firearms and horses. However, they differed in their internal political dynamics, as the Incan Empire was further weakened by a recent civil war, while the Aztecs faced a more unified resistance against the Spanish. Furthermore, the strategic alliances formed by Hernán Cortés with discontented tribes played a crucial role in the Aztec defeat, while Francisco Pizarro exploited existing divisions within the Incan leadership.