History of the Peloponnesian War

For about the time that these things passed amongst the Lyncesteans, the Athenians, after all was in readiness, set sail for Mende and Scione with fifty galleys (whereof ten were of Chios) and a thousand men of arms of their own city, six hundred archers, a thousand Thracian mercenaries, and other targetiers of their own confederates thereabouts, under the conduct of Nicias, the son of Niceratus, and Nicostratus, the son of Diotrephes.

These, launching from Potidaea with their galleys and putting in at the temple of Neptune, marched presently against the Mendaeans. The Mendaeans with their own forces, three hundred of Scione that came to aid them, and the aids of the Peloponnesians, in all seven hundred men of arms, and Polydamidas their commander, were encamped upon a strong hill without the city.