History of the Peloponnesian War

The Peloponnesians were now well engaged and with their outflanking wing were upon the point of turning their enemy's right; when the Acarnanians from the ambuscade set upon them from behind, and broke them at the first attack, without their staying to resist; while the panic into which they fell caused the flight of most of their army, terrified beyond measure at seeing the division of Eurylochus and their best troops cut to pieces. Most of the work was done by Demosthenes and his Messenians, who were posted in this part of the field.

Meanwhile the Ambraciots (who are the best soldiers in those countries) and the troops upon the right wing, defeated the division opposed to them and pursued it to Argos.

Returning from the pursuit, they found their main body defeated; and hard pressed by the Acarnanians, With difficulty made good their passage to Olpae, suffering heavy loss on the way, as they dashed on without discipline or order, the Mantineans excepted, who kept their ranks best of any in the army during the retreat. The battle did not end until the evening.