History of the Peloponnesian War

Word was now brought to Demosthenes and the Acarnanians that the inhabitants of the city of Ambracia,[*](As distinguished from the Ambraciots who after the battle were shut up in Olpae (3.111.2).) in response to the first message that came from Olpae, were marching in full force through the Amphilochian territory, wishing to join the forces in Olpae, and that they were quite unaware of what had happened.

So he immediately sent a part of his army to forestall these troops by setting ambuscades along the roads and occupying the strong positions, and at the same time began preparations to lead the rest of the army against them.