History of the Peloponnesian War

At this same period, Simonides, an Athenian commander, having got together a few Athenians from the guard-stations, and a large body of the allies in that neighbourhood, took possession of Eion in Thrace, a colony from Mende, and hostile [to Athens], which was betrayed to him. But the Chalcidians and Bottiaeans having immediately come to its rescue, he was beaten out of it, and lost many of his soldiers.