Their king, Agis, accordingly set out at once during this winter with some troops from Decelea, and levied from the allies contributions for the fleet, and turning towards the Malian Gulf exacted a sum of money from the Oetaeans by carrying off most of their cattle in reprisal for their old hostility, and, in spite of the protests and opposition of the Thessalians, forced the Achaeans of Phthiotis and the other subjects of the Thessalians in those parts to give him money and hostages, and deposited the hostages at Corinth, and tried to bring their countrymen into the confederacy. The Lacedaemonians now issued a requisition to the cities for building a hundred ships, fixing their own quota and that of the Boeotians at twenty-five each; that of the Phocians and Locrians together at fifteen; that of the Corinthians at fifteen; that of the Arcadians, Pellenians, and Sicyonians together at ten; and that of the Megarians, Troezenians, Epidaurians, and Hermionians together at ten also; and meanwhile made every other preparation for commencing hostilities by the spring.

In the meantime the Athenians were not idle. During this same winter, as they had determined, they contributed timber and pushed on their ship-building, and fortified Sunium to enable their corn-ships to round it in safety, and evacuated the fort in Laconia which they had built on their way to Sicily; while they also, for economy, cut down any other expenses that seemed unnecessary, and above all kept a careful look-out against the revolt of their confederates.

While both parties were thus engaged, and were as intent upon preparing for the war as they had been at the outset, the Euboeans first of all sent envoys during this winter to Agis to treat of their revolting from Athens. Agis accepted their proposals, and sent for Alcamenes, son of Sthenelaidas, and Melanthus from Lacedaemon, to take the command in Euboea. These accordingly arrived with some three hundred Neodamodes, and Agis began to arrange for their crossing over. But in the meanwhile arrived some Lesbians, who also wished to revolt; and these being supported by the Boeotians, Agis was persuaded to defer acting in the matter of Euboea, and made arrangements for the revolt of the Lesbians, giving them Alcamenes, who was to have sailed to Euboea, as governor, and himself promising them ten ships, and the Boeotians the same number. All this was done without instructions from home, as Agis while at Decelea with the army that he commanded had power to send troops to whatever quarter he pleased, and to levy men and money. During this period, one might say, the allies obeyed him much more than they did the Lacedaemonians in the city, as the force he had with him made him feared at once wherever he went. While Agis was engaged with the Lesbians, the Chians and Erythraeans, who were also ready to revolt, applied, not to him but at Lacedaemon; where they arrived accompanied by an ambassador from Tissaphernes, the commander of King Darius, son of Artaxerxes, in the maritime districts, who invited the Peloponnesians to come over, and promised to maintain their army. The King had lately called upon him for the tribute from his government, for which he was in arrears, being unable to raise it from the Hellenic towns by reason of the Athenians; and he therefore calculated that by weakening the Athenians he should get the tribute better paid, and should also draw the Lacedaemonians into alliance with the King; and by this means, as the King had commanded him, take alive or dead Amorges, the bastard son of Pissuthnes, who was in rebellion on the coast of Caria.

While the Chians and Tissaphernes thus joined to effect the same object, about the same time Calligeitus, son of Laophon, a Megarian, and Timagoras, son of Athenagoras, a Cyzicene, both of them exiles from their country and living at the court of Pharnabazus, son of Pharnaces, arrived at Lacedaemon upon a mission from Pharnabazus, to procure a fleet for the Hellespont; by means of which, if possible, he might himself effect the object of Tissaphernes’ ambition and cause the cities in his government to revolt from the Athenians, and so get the tribute, and by his own agency obtain for the King the alliance of the Lacedaemonians.

The emissaries of Pharnabazus and Tissaphernes treating apart, a keen competition now ensued at Lacedaemon as to whether a fleet and army should be sent first to Ionia and Chios, or to the Hellespont. The Lacedaemonians, however, decidedly favoured the Chians and Tissaphernes, who were seconded by Alcibiades, the family friend of Endius, one of the ephors for that year. Indeed, this is how their house got its Laconic name, Alcibiades being the family name of Endius. Nevertheless the Lacedaemonians first sent to Chios Phrynis, one of the Perioeci, to see whether they had as many ships as they said, and whether their city generally was as great as was reported; and upon his bringing word that they had been told the truth, immediately entered into alliance with the Chians and Erythraeans, and voted to send them forty ships, there being already, according to the statement of the Chians, not less than sixty in the island. At first the Lacedaemonians meant to send ten of these forty themselves, with Melanchridas their admiral; but afterwards, an earthquake having occurred, they sent Chalcideus instead of Melanchridas, and instead of the ten ships equipped only five in Laconia. And the winter ended, and with it ended also the nineteenth year of this war of which Thucydides is the historian.

At the beginning of the next summer the Chians were urging that the fleet should be sent off, being afraid that the Athenians, from whom all these embassies were kept a secret, might find out what was going on, and the Lacedaemonians at once sent three Spartans to Corinth to haul the ships as quickly as possible across the Isthmus from the other sea to that on the side of Athens, and to order them all to sail to Chios, those which Agis was equipping for Lesbos not excepted. The number of ships from the allied states was thirty-nine in all.

Meanwhile Calligeitus and Timagoras did not join on behalf of Pharnabazus in the expedition to Chios or give the money—twenty-five talents—which they had brought with them to help in dispatching a force, but determined to sail afterwards with another force by themselves. Agis, on the other hand, seeing the Lacedaemonians bent upon going to Chios first, himself came in to their views; and the allies assembled at Corinth and held a council, in which they decided to sail first to Chios under the command of Chalcideus, who was equipping the five vessels in Laconia, then to Lesbos, under the command of Alcamenes, the same whom Agis had fixed upon, and lastly to go to the Hellespont, where the command was given to Clearchus, son of Ramphias. Meanwhile they would take only half the ships across the Isthmus first, and let those sail off at once, in order that the Athenians might attend less to the departing squadron than to those to be taken across afterwards, as no care had been taken to keep this voyage secret through contempt of the impotence of the Athenians, who had as yet no fleet of any account upon the sea. Agreeably to this determination, twenty-one vessels were at once conveyed across the Isthmus.

They were now impatient to set sail, but the Corinthians were not willing to accompany them until they had celebrated the Isthmian festival, which fell at that time. Upon this Agis proposed to them to save their scruples about breaking the Isthmian truce by taking the expedition upon himself. The Corinthians not consenting to this, a delay ensued, during which the Athenians conceived suspicions of what was preparing at Chios, and sent Aristocrates, one of their generals, and charged them with the fact, and, upon the denial of the Chians, ordered them to send with them a contingent of ships, as faithful confederates. Seven were sent accordingly. The reason of the dispatch of the ships lay in the fact that the mass of the Chians were not privy to the negotiations, while the few who were in the secret did not wish to break with the multitude until they had something positive to lean upon, and no longer expected the Peloponnesians to arrive by reason of their delay.

In the meantime the Isthmian games took place, and the Athenians, who had been also invited, went to attend them, and now seeing more clearly into the designs of the Chians, as soon as they returned to Athens took measures to prevent the fleet putting out from Cenchreae without their knowledge. After the festival the Peloponnesians set sail with twenty-one ships for Chios, under the command of Alcamenes. The Athenians first sailed against them with an equal number, drawing off towards the open sea. The enemy, however, turning back before he had followed them far, the Athenians returned also, not trusting the seven Chian ships which formed part of their number, and afterwards manned thirty-seven vessels in all and chased him on his passage alongshore into Spiraeum, a desert Corinthian port on the edge of the Epidaurian frontier. After losing one ship out at sea, the Peloponnesians got the rest together and brought them to anchor. The Athenians now attacked not only from the sea with their fleet, but also disembarked upon the coast; and a melee ensued of the most confused and violent kind, in which the Athenians disabled most of the enemy’s vessels and killed Alcamenes their commander, losing also a few of their own men.

After this they separated, and the Athenians, detaching a sufficient number of ships to blockade those of the enemy, anchored with the rest at the islet adjacent, upon which they proceeded to encamp, and sent to Athens for reinforcements; the Peloponnesians having been joined on the day after the battle by the Corinthians, who came to help the ships, and by the other inhabitants in the vicinity not long afterwards. These saw the difficulty of keeping guard in a desert place, and in their perplexity at first thought of burning the ships, but finally resolved to haul them up on shore and sit down and guard them with their land forces until a convenient opportunity for escaping should present itself. Agis also, on being informed of the disaster, sent them a Spartan of the name of Thermon. The Lacedaemonians first received the news of the fleet having put out from the Isthmus, Alcamenes having been ordered by the ephors to send off a horseman when this took place, and immediately resolved to dispatch their own five vessels under Chalcideus, and Alcibiades with him. But while they were full of this resolution came the second news of the fleet having taken refuge in Spiraeum; and disheartened at their first step in the Ionian war proving a failure, they laid aside the idea of sending the ships from their own country, and even wished to recall some that had already sailed.