History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
while the Amphilochians and Acarnanians occupied the town in common.
And it was after this event that the alliance between the Athenians and Acarnanians was first made. The Ambraciots then first conceived their enmity to the Argives from this enslavement of their people; and afterwards, during the war, formed this armament from themselves and the Chaonians, and some other of the neighboring barbarians. Having come to Argos, they obtained command of the country; but being unable to take the city by assault, they retired homeward, and disbanding returned to their different nations. These were the events of the summer.
The following winter, the Athenians sent twenty ships round the Peloponnese, with Phormio as commander, who, making Naupactus his station, kept watch that no one either sailed out from Corinth and the Crisaean Bay, or into it. Another squadron of six they sent towards Caria and Lycia, with Melesander as commander, to raise money from those parts, and to hinder the privateers of the Peloponnesians from making that their rendezvous, and interfering with the navigation of the merchantmen from Phaselis and Phoenice, and the continent in that direction.
But Melesander, having gone up the country into Lycia with a force composed of the Athenians from the ships and the allies, and being defeated in a battle, was killed, and lost a considerable part of the army.
The same winter, when the Potidaeans could no longer hold out against their besiegers, the inroads of the Peloponnesians into Attica having had no more effect towards causing the Athenians to withdraw, and their provisions being exhausted, and many other horrors having befallen them in their straits for food, and some having even eaten one another; under these circumstances, I say, they make proposals for a capitulation to the generals of the Athenians who were in command against them, Xenophon son of Euripides, Histiodorus son of Aristoclides, and Phanomachus son of Callimachus;
who accepted them, seeing the distress of their army in so exposed a position, and the state having already expended 2000 talents on the siege. On these terms therefore they came to an agreement;