History of the Peloponnesian War

On the arrival of the men, the Athenians determined to keep them in prison, fill some arrangement should be made; and if the Lacedaemonians should before that invade their territory, to take them out and put them to death.

They also arranged for the defence of Pylus; and the Messenians of Naupactus sent to the place, as to the land of their fathers, (for Pylus is a part of what was formerly the Messenian country,) such of their men as were most fit for the service, and plundered Laconia, and annoyed them most seriously by means of their common dialect.