For 10 points, name these conflicts between the Delian League and a namesake coalition that included Sparta.
In the first of these conflicts, one side rebounded from a loss to the regent of the boy king Pleistoanax with a crushing victory at Oenophyta, but that side's fortunes reversed after an expedition to Egypt was crushed on Prosopitis by Megabazus. Sthenelaidas successfully argued for the initiation of a war of this name, over Archidamus II's pleas for caution. Donald Kagan wrote a celebrated history about a war of this name, in which the capture of (*) Pylos caused one side to strand a contingent of troops on Sphacteria. That conflict, which was triggered in part by a massive naval battle near Corcyra, ended after Lysander caught the losing side's fleet unprepared near Sestos in the battle of Aegospotami. For 10 points, name these conflicts between the Delian League and a namesake coalition that included Sparta.
In the first of these conflicts, one side rebounded from a loss to the regent of the boy king Pleistoanax with a crushing victory at Oenophyta, but that side's fortunes reversed after an expedition to Egypt was crushed on Prosopitis by Megabazus.
The Peloponnesian Wars