History of the Peloponnesian War

The same summer, and about the same time that the Athenians were detained at Melos, the forces on board the thirty ships that were cruising about the Peloponnese first of all laid an ambush at Ellomenus in Leucadia, and cut off some garrison troops; and afterwards came against Leucas with a larger force, and with all the Acarnanians, who accompanied them in a body, except the Aeniadae, and with the Zacynthians and Cephallenians, and fifteen ships of the Corcyraeans.

The Leucadians, on the wasting of their territory, both without and within the isthmus, on which stands Leucas and the temple of Apollo, being overpowered by such numbers, remained quiet; while the Acarnanians requested Demosthenes, the general of the Athenians, to cut them off by a wall, thinking that they might then easily take them by storm, and so be rid of a city which was always hostile to them.