What were the battle strategies of Athens and Sparta during the Peloponnesian war?

During the Peloponnesian War, Athens relied on its naval superiority, utilizing its powerful fleet to conduct raids, control trade routes, and supply its allied city-states. The Athenian strategy focused on avoiding direct land confrontations with Spartan forces, instead opting for a defensive posture, fortified by their walls and resources. In contrast, Sparta employed a land-based strategy, leveraging its elite hoplite soldiers to engage in direct battles and aiming to invade and devastate Athenian territory. This fundamental difference in military approach highlighted the contrasting strengths of the two city-states throughout the conflict.