History of the Peloponnesian War
Thucydides
Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.
some Molossians and Atintanians led by Sabylinthus, the guardian of king Tharyps who was still a minor, and some Paravaeans, under their King Oroedus, accompanied by a thousand Orestians, subjects of King Antiochus and placed by him under the command of Oroedus.
There were also a thousand Macedonians sent by Perdiccas without the knowledge of the Athenians, but they arrived too late.
With this force Cnemus set out, without waiting for the fleet from Corinth. Passing through the territory of Amphilochian Argos, and sacking the open village of Limnaea, they advanced to Stratus the Acarnanian capital; this once taken, the rest of the country, they felt convinced would speedily follow.
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.