History of the Peloponnesian War

Meanwhile Eurylochus and his Peloponnesians, learning that the Ambraciots at Olpae had arrived, set out from Proschium with all haste to join them, and crossing the Achelous advanced through Acarnania, which they found deserted by its population, who had gone to the relief of Argos; keeping on their right the city of the Stratians and its garrison, and on their left the rest of Acarnania.

Traversing the territory of the Stratians, they advanced through Phytia, next, skirting Medeon, through Limnaea; after which they left Acarnania behind them and entered a friendly country, that of the Agraeans.

From thence they reached and crossed Mount Thyamus, which belongs to the Agraeans, and descended into the Argive territory after nightfall, and passing between the city of Argos and the Acarnanian posts at Krenae, joined the Ambraciots at Olpae.

Uniting here at daybreak, they sat down at the place called Metropolis, and encamped. Not long afterwards the Athenians in the twenty ships came into the Ambracian Gulf to support the Argives, with Demosthenes and two hundred Messenian heavy infantry, and sixty Athenian archers.