The Megalopolitans, on hearing that the Aetolians were encamped at Methydrium, summoned two whole levy by trumpet and arrived to help the day after the battle, so that they were compelled to bury, slain by the foe, the very men side by side with whom they had expected to stand and meet that foe in battle. Digging a trench in the plain of Caphyae, they collected the bodies and interred the unfortunates with all due honours. The Aetolians, having in this remarkable manner won a battle with their cavalry and light infantry alone, continued to advance henceforth in safety through the middle of the <a class="linkToPlace" target="_blank" href="/place?placename=Peloponnese&groupId=861&placeId=1552">Peloponnese</a>. After making an attempt on Pellene during their march and pillaging the territory of Sicyon, they finally withdrew by way of the Isthmus.
Such was the cause and origin of the Social War, its beginning being the resolution passed by all the allies, who assembling at <a class="linkToPlace" target="_blank" href="/place?placename=Corinth&groupId=493&placeId=928">Corinth</a> under the presidency of King Philip, confirmed this measure.
Walbank Commentary