Final answer:
Alexander the Great and his armies retreated due to exhaustion, opposition from local populations, and refusal of his soldiers to carry on.
Step-by-step explanation:
Alexander the Great and his armies retreated due to factors such as exhaustion, opposition from local populations, and the refusal of his soldiers to carry on.
Battles and sieges often took a toll on the physical and mental strength of the soldiers, leading to fatigue and a loss of morale. This made it difficult for them to continue fighting and prompted the decision to retreat.
Additionally, Alexander faced resistance from various groups and nations that were not willing to let him conquer their lands. The constant resistance and guerilla warfare tactics employed by these groups weakened his position and made it prudent to retreat in certain situations.
Learn more about Reasons for Alexander the Great's retreat