History of the Peloponnesian War

After this began the alliance between the Athenians and Acarnanians.

The enmity of the Ambraciots against the Argives thus commenced with the enslavement of their citizens; and afterwards during the war they collected this armament among themselves and the Chaonians, and other of the neighboring barbarians. Arrived before Argos, they became masters of the country; but not being successful in their attacks upon the town, returned home and dispersed among their different peoples.