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.

On the return of the Peloponnesians from Attica, the Spartans themselves and the nearest of the Perioeci immediately went to the rescue of Pylus; but the other Lacedaemonians were more slow in marching against it, as they had but just reached home from a different expedition.