While these were the schemes of the exiles, the Athenians in the same summer made an expedition with sixty ships, two thousand heavy infantry, a few cavalry, and some allied troops from Miletus and other parts, against Cythera, under the command of Nicias, son of Niceratus, Nicostratus, son of Diotrephes, and Autocles, son of Tolmaeus. Cythera is an island lying off Laconia, opposite Malea; the inhabitants are Lacedaemonians of the class of the Perioeci; and an officer called the judge of Cythera went over to the place annually from Sparta. Agarrison of heavy infantry was also regularly sent there, and great attention paid to the island, as it was the landing-place for the merchantmen from Egypt and Libya, and at the same time secured Laconia from the attacks of privateers from the sea, at the only point where it is assailable, as the whole coast rises abruptly towards the Sicilian and Cretan seas.
Coming to land here with their armament, the Athenians with ten ships and two thousand Milesian heavy infantry took the town of Scandea, on the sea; and with the rest of their forces landing on the side of the island looking towards Malea, went against the lower town of Cythera, where they found all the inhabitants encamped. Abattle ensuing, the Cytherians held their ground for some little while, and then turned and fled into the upper town, where they soon afterwards capitulated to Nicias and his colleagues, agreeing to leave their fate to the decision of the Athenians, their lives only being safe. A correspondence had previously been going on between Nicias and certain of the inhabitants, which caused the surrender to be effected more speedily, and upon terms more advantageous, present and future, for the Cytherians; who would otherwise have been expelled by the Athenians on account of their being Lacedaemonians and their island being so near to Laconia. After the capitulation, the Athenians occupied the town of Scandea near the harbour, and appointing a garrison for Cythera, sailed to Asine, Helus, and most of the places on the sea, and making descents and passing the night on shore at such spots as were convenient, continued ravaging the country for about seven days.
The Lacedaemonians seeing the Athenians masters of Cythera, and expecting descents of the kind upon their coasts, nowhere opposed them in force, but sent garrisons here and there through the country, consisting of as many heavy infantry as the points menaced seemed to require, and generally stood very much upon the defensive. After the severe and unexpected blow that had befallen them in the island, the occupation of Pylos and Cythera, and the apparition on every side of a war whose rapidity defied precaution, they lived in constant fear of internal revolution, and now took the unusual step of raising four hundred horse and a force of archers, and became more timid than ever in military matters, finding themselves involved in a maritime struggle, which their organization had never contemplated, and that against Athenians, with whom an enterprise unattempted was always looked upon as a success sacrificed. Besides this, their late numerous reverses of fortune, coming close one upon another without any reason, had thoroughly unnerved them, and they were always afraid of a second disaster like that on the island, and thus scarcely dared to take the field, but fancied that they could not stir without a blunder, for being new to the experience of adversity they had lost all confidence in themselves.
Accordingly they now allowed the Athenians to ravage their seaboard, without making any movement, the garrisons in whose neighbourhood the descents were made always thinking their numbers insufficient, and sharing the general feeling. A single garrison which ventured to resist, near Cotyrta and Aphrodisia, struck terror by its charge into the scattered mob of light troops, but retreated, upon being received by the heavy infantry, with the loss of a few men and some arms, for which the Athenians set up a trophy, and then sailed off to Cythera. From thence they sailed round to Epidaurus Limera, ravaged part of the country, and so came to Thyrea in the Cynurian territory, upon the Argive and Laconian border. This district had been given by its Lacedaemonian owners to the expelled Aeginetans to inhabit, in return for their good offices at the time of the earthquake and the rising of the Helots; and also because, although subjects of Athens, they had always sided with Lacedaemon.
While the Athenians were still at sea, the Aeginetans evacuated a fort which they were building upon the coast, and retreated into the upper town where they lived, rather more than a mile from the sea. One of the Lacedaemonian district garrisons which was helping them in the work, refused to enter here with them at their entreaty, thinking it dangerous to shut themselves up within the wall, and retiring to the high ground remained quiet, not considering themselves a match for the enemy. Meanwhile the Athenians landed, and instantly advanced with all their forces and took Thyrea. The town they burnt, pillaging what was in it; the Aeginetans who were not slain in action they took with them to Athens, with Tantalus, son of Patrocles, their Lacedaemonian commander, who had been wounded and taken prisoner. They also took with them a few men from Cythera whom they thought it safest to remove. These the Athenians determined to lodge in the islands: the rest of the Cytherians were to retain their lands and pay four talents tribute; the Aeginetans captured to be all put to death, on account of the old inveterate feud; and Tantalus to share the imprisonment of the Lacedaemonians taken on the island.