History of the Peloponnesian War

At the same time he was getting ready fifteen hundred Thracian mercenaries, and was calling all the Edonians to his aid, both targeteers and cavalry; and he had a thousand targeteers of the Myrcinians and Chalcidians, in addition to those in Amphipolis.

All his heavy-armed force too was mustered, about two thousand in number, and three hundred Grecian horse. With fifteen hundred of these Brasidas stationed himself on Cerdylium, whilst the rest were posted with Clearidas in Amphipolis.

Cleon remained quiet for some time, but was then compelled to do what Brasidas had expected.