History of the Peloponnesian War

But when the barbarians in their flight broke in upon them, they took them in and uniting their two divisions kept quiet there during the day, the Stratians not coming to close quarters with them, because the rest of the Acarnanians had not yet come to their support, but using their slings against them from a distance and distressing them; for it was not possible for them to stir without armour; and indeed the Acarnanians are famous for their excellence in the use of the sling.