Today's Passage
This passage describes a failed Peloponnesian invasion of Acarnania in 429 BCE, early in the Peloponnesian War.
Crawley Translation (1910)
The Acarnanians, finding themselves invaded by a large army by land, and from the sea threatened by a hostile fleet, made no combined attempt at resistance, but remained to defend their homes, and sent for help to Phormio, who replied that, when a fleet was on the point of sailing from Corinth, it was impossible for him to leave Naupactus unprotected. The Peloponnesians meanwhile and their allies advanced upon Stratus in three divisions, with the intention of encamping near it and attempting the wall by force if they failed to succeed by negotiation. The order of march was as follows: the centre was occupied by the Chaonians and the rest of the barbarians, with the Leucadians and Anactorians and their followers on the right, and Cnemus with the Peloponnesians and Ambraciots on the left; each division being a long way off from, and sometimes even out of sight of, the others. The Hellenes advanced in good order, keeping a look-out till they encamped in a good position; but the Chaonians, filled with self-confidence, and having the highest character for courage among the tribes of that part of the continent, without waiting to occupy their camp, rushed on with the rest of the barbarians, in the idea that they should take the town by assault and obtain the sole glory of the enterprise. While they were coming on, the Stratians, becoming aware how things stood, and thinking that the defeat of this division would considerably dishearten the Hellenes behind it, occupied the environs of the town with ambuscades, and as soon as they approached engaged them at close quarters from the city and the ambuscades. A panic seizing the Chaonians, great numbers of them were slain; and as soon as they were seen to give way the rest of the barbarians turned and fled. Owing to the distance by which their allies had preceded them, neither of the Hellenic divisions knew anything of the battle, but fancied they were hastening on to encamp. However, when the flying barbarians broke in upon them, they opened their ranks to receive them, brought their divisions together, and stopped quiet where they were for the day; the Stratians not offering to engage them, as the rest of the Acarnanians had not yet arrived, but contenting themselves with slinging at them from a distance, which distressed them greatly, as there was no stirring without their armour. The Acarnanians would seem to excel in this mode of warfare.
As soon as night fell, Cnemus hastily drew off his army to the river Anapus, about nine miles from Stratus, recovering his dead next day under truce, and being there joined by the friendly Oeniadae, fell back upon their city before the enemy’s reinforcements came up. From hence each returned home; and the Stratians set up a trophy for the battle with the barbarians.
Modern Translation
When the Acarnanians found themselves under attack by a large land army and threatened by an enemy fleet from the sea, they made no unified attempt to resist. Instead, each community stayed to defend its own territory, and they sent a request for help to Phormio. He responded that with a fleet about to sail from Corinth, he could not leave Naupactus undefended. Meanwhile, the Peloponnesian forces and their allies advanced toward Stratus in three separate divisions, planning to make camp near the city and, if negotiations failed, to assault its walls by force. Their marching order was as follows: the Chaonians and other non-Greek tribes held the center, the Leucadians and Anactorians with their followers took the right wing, and Cnemus led the Peloponnesians and Ambraciots on the left. Each division marched at such a distance from the others that they were sometimes out of sight of one another. The Greek forces advanced in good order, maintaining vigilance until they could establish a secure camp. However, the Chaonians, brimming with overconfidence and enjoying the highest reputation for bravery among the continental tribes of that region, did not wait to set up camp. Instead, they charged forward with the other non-Greek forces, believing they could capture the city by storm and claim all the glory for themselves. As they approached, the Stratians, who had become aware of the situation and realized that defeating this division would severely demoralize the Greek forces behind it, positioned ambush forces around the city. When the attackers came close, the Stratians engaged them in close combat from both the city and the hidden positions. Panic struck the Chaonians, and many were killed. When the other non-Greeks saw them retreat, they too turned and fled. Because of the distance between the divisions, neither Greek contingent knew about the battle—they assumed the advance guard was simply hurrying to set up camp. When the fleeing non-Greeks crashed into their lines, however, the Greeks opened their ranks to let them through, consolidated their forces, and held their position for the rest of the day. The Stratians did not engage them directly, since reinforcements from the rest of Acarnania had not yet arrived, but instead harassed them with sling attacks from a distance. This caused the invaders considerable distress, as they could not move without their armor. The Acarnanians appear to be particularly skilled in this type of warfare. When night fell, Cnemus hastily withdrew his army to the river Anapus, about nine miles from Stratus. The next day he recovered his dead under a truce, and after being joined by the allied Oeniadae, he retreated to their city before enemy reinforcements could arrive. From there, each contingent returned to its homeland, while the Stratians erected a trophy to commemorate their victory over the non-Greek forces.
Historical Context
This passage describes a failed Peloponnesian invasion of Acarnania in 429 BCE, early in the Peloponnesian War. The invasion was part of a coordinated strategy to attack Athens' allies in northwestern Greece while the Athenian fleet under Phormio was occupied at Naupactus. The key participants include Cnemus (the Spartan commander), various Peloponnesian allies, the overconfident Chaonian tribe, and the defending Stratians. The episode demonstrates the dangers of poor coordination in ancient warfare and the effectiveness of local knowledge and guerrilla tactics against a larger but disorganized force. The Chaonians' premature attack and subsequent rout caused the entire invasion to collapse, showing how barbarian allies could be both an asset and a liability. This defeat would lead to further Peloponnesian setbacks in the region.
Key Themes
Annotations & References
Acarnania
Acarnania was a region in northwestern Greece, allied with Athens during the Peloponnesian War. Its strategic location made it important for controlling the Corinthian Gulf and communications with the west. The Acarnanians were known for their skill in light-armed warfare, particularly with slings.
Learn more →Phormio
Phormio was one of Athens' most successful naval commanders, famous for his victories in the Gulf of Corinth. His inability to assist the Acarnanians here shows the strategic dilemma Athens faced in protecting its scattered allies while maintaining naval supremacy.
Learn more →Greek vs Barbarian Warfare
Thucydides contrasts the disciplined Greek hoplite tactics with the impetuous charge of the 'barbarian' Chaonians. This reflects Greek cultural assumptions about military superiority through discipline and order, though here the 'barbarians' fighting for Greece are defeated by Greek defenders using irregular tactics.
Learn more →Ancient Sling Warfare
Slings were effective ranged weapons in ancient warfare, especially against heavily armored hoplites who couldn't pursue light-armed slingers. The Acarnanians' expertise with slings gave them a significant tactical advantage, forcing the invaders to remain in their armor and preventing foraging.
Learn more →Parallel Ancient Sources
Diodorus Siculus: Library of History (12.48)
Diodorus provides a briefer account of Peloponnesian operations in northwestern Greece during this period, though with less detail about the battle at Stratus.
Read passage →Herodotus: Histories (7.175-177)
Herodotus describes how local knowledge and terrain advantage helped Greeks defeat larger Persian forces at Thermopylae's initial skirmishes, similar to the Stratians' use of ambush tactics.
Read passage →Xenophon: Anabasis (3.3-4)
Xenophon describes the difficulties faced by Greek heavy infantry when harassed by light-armed enemies using slings and arrows, paralleling the Peloponnesian experience at Stratus.
Read passage →Discussion Questions
- How does this episode illustrate the challenges of coalition warfare in the ancient world? Consider the coordination problems between Greeks and non-Greeks.
- What does the Chaonians' failed attack reveal about the tension between honor/glory and military effectiveness in ancient warfare?
- How does Thucydides' description of 'barbarians' versus 'Hellenes' reflect Greek cultural attitudes, and what ironies emerge in this battle?
- Why might Phormio's decision to prioritize Naupactus over aiding the Acarnanians represent sound strategic thinking despite abandoning allies?