Cleon had now sailed round from Toronè against Amphipolis, and making Eion his headquarters,1
, a colony of the Andrians, which he failed to take. He succeeded, however, in storming Galepsus3
, a Thasian colony.
He sent an embassy to Perdiccas, desiring him to come with an army, according to the terms of the alliance4
, and another to Polles, the king of the Odomantian Thracians, who was to bring as many Thracian mercenaries as he could; he then remained quietly at Eion waiting for these reinforcements.
Brasidas, hearing of his movements, took up a counter-position on Cerdylium. This is a high ground on the right bank of the river, not far from Amphipolis, belonging to the Argilians. From this spot he commanded a view of the country round, so that Cleon was sure to be seen by him if,—as Brasidas fully expected,—despising the numbers of his opponents, he should go up against Amphipolis without waiting for his reinforcements.
At the same time he prepared for a battle, summoning to his side fifteen hundred Thracian mercenaries and the entire forces of the Edonians, who were targeteers and horsemen; he had already one thousand Myrcinian and Chalcidian targeteers, in addition to the troops in Amphipolis.
His heavy-armed, when all mustered, amounted to nearly two thousand, and he had three hundred Hellenic cavalry. Of these forces about fifteen hundred were stationed with Brasidas on Cerdylium, and the remainder were drawn up in order of battle under Clearidas in Amphipolis.