History of the Peloponnesian War

The same winter the Ambraciots, as they had promised Eurylochus when they retained his army, marched forth against the Amphilochian Argos with three thousand heavy-armed; and entering the Argive territory, occupied Olpae, a strong-hold on a hill near the sea, which the Acarnanians had once fortified, and used as their common place of meeting for judicial purposes; its distance from the city of Argos on the coast being about twenty-five stades.

Now some of the Acarnanians went to the relief of Argos, while others encamped in Amphilochia, in the place called [*]( Corresponding exactly to our Wells. ) Crenae, being on the watch to prevent the Peloponnesians with Eurylochus passing through unobserved to the Ambraciots.

They also sent for Demosthenes, who had commanded the Athenian expedition against Aetolia, to be their leader; and for the twenty Athenian ships that happened to be cruising about the Peloponnese, under the command of Aristoteles son of Timocrates, and Hierophon son of Antimnestus.

The Ambraciots at Olpae also sent a messenger to their city, desiring them to come in full force to their assistance, fearing that the troops under Eurylochus might not be able to effect a passage through the Acarnanians, and that they themselves might either have to fight unsupported, or, if they wished to retreat, find it unsafe to do so.