While Pericles thus decidedly forbade any general march out for battle he sought to provide as much employment as possible for the compressed eagerness of the citizens. The cavalry were sent forth, together with the Thessalian cavalry their allies, for the purpose of restraining the excursions of the enemy’s light troops, and protecting the lands near the city from plunder. At the same time he fitted out a powerful expedition, which sailed forth to ravage Peloponnesus, even while the invaders were yet in Attica. Archidamus, after having remained engaged in the devastation of Acharnæ long enough to satisfy himself that the Athenians would not hazard a battle, turned away from Athens in a northwesterly direction towards the demes between Mount Brilessus and Mount Parnes, on the road passing through Decelea. The army continued ravaging these districts until their provisions were exhausted, and then quitted Attica by the northwestern road near Oropus, which brought them into Bœotia. As the Oropians, though not Athenians, were yet dependent upon Athens—the district of Græa, a portion of their territory, was laid waste; after which the army dispersed and retired back to their respective homes. It would seem that they quitted Attica towards the end of July, having remained in the country between thirty and forty days.
Meanwhile, the Athenian expedition, under Caranus, Proteas, and Socrates, joined by fifty Corcyræan ships and by some other allies, sailed round Peloponnesus, landing in various parts to inflict damage, and among other places at Methone (Modon), on the southwestern peninsula of the Lacedæmonian territory. The place, neither strong nor well-garrisoned, would have been carried with little difficulty, had not Brasidas, the son of Tellis—a gallant Spartan now mentioned for the first time, but destined to great celebrity afterwards—who happened to be on guard at a neighbouring post, thrown himself into it with one hundred men by a rapid movement, before the dispersed Athenian troops could be brought together to prevent him. He infused such courage into the defenders of the place that every attack was repelled, and the Athenians were forced to re-embark—an act of prowess which procured for him the first public honours bestowed by the Spartans during this war. Sailing northward along the western coast of Peloponnesus, the Athenians landed again on the coast of Elis, a little south of the promontory called Cape Ichthys: they ravaged the territory for two days, defeating both the troops in the neighbourhood and three hundred chosen men from the central Elean territory. Strong winds on a harbourless coast now induced the captains to sail with most of the troops round Cape Ichthys, in order to reach the harbour of Phea on the northern side of it; while the Messenian hoplites, marching by land across the promontory, attacked Phea and carried it by assault. When the fleet arrived, all were re-embarked—the full force of Elis being under march to attack them. They then sailed northward, landing on various other spots to commit devastation, until they reached Sollium, a Corinthian settlement on the coast of Acarnania. They captured this place, which they handed over to the inhabitants of the neighbouring Acarnanian town of Palærus, as well as Astacus, from whence they expelled the despot Euarchus, and enrolled the town as a member of the Athenian alliance. From hence they passed over to Cephallenia, which they were fortunate enough also to acquire as an ally of Athens without any compulsion—with its four distinct towns or districts, Pale, Cranii, Same, and Proni. These various operations took up near three months from about the beginning of July, so that they returned to Athens towards the close of September—the beginning of the winter half of the year, according to the distribution of Thucydides.