What might have happened if Sparta and its army was weak?

If Sparta and its army had been weak, it could have significantly altered the balance of power in ancient Greece. Without a strong military presence, Sparta might have been unable to maintain control over its helot population and defend against rival city-states like Athens, potentially leading to uprisings or invasions. The shift in power could have allowed Athens and other city-states to dominate the region, influencing cultural and political developments in ways that favored their interests. Additionally, the lack of Spartan military strength could have weakened the overall Greek resistance against external threats, such as Persia.