After receiving these instructions for their governments from Xenares and Cleobulus and their friends at Lacedaemon, the Boeotians and Corinthians departed. On their way home they were joined by two persons high in office at Argos, who had waited for them on the road, and who now sounded them upon the possibility of the Boeotians joining the Corinthians, Eleans, and Mantineans in becoming the allies of Argos, in the idea that if this could be effected they would be able, thus united, to make peace or war as they pleased either against Lacedaemon or any other power. The Boeotian envoys were were pleased at thus hearing themselves accidentally asked to do what their friends at Lacedaemon had told them; and the two Argives perceiving that their proposal was agreeable, departed with a promise to send ambassadors to the Boeotians. On their arrival the Boeotians reported to the Boeotarchs what had been said to them at Lacedaemon and also by the Argives who had met them, and the Boeotarchs, pleased with the idea, embraced it with the more eagerness from the lucky coincidence of Argos soliciting the very thing wanted by their friends at Lacedaemon. Shortly afterwards ambassadors appeared from Argos with the proposals indicated; and the Boeotarchs approved of the terms and dismissed the ambassadors with a promise to send envoys to Argos to negotiate the alliance.
In the meantime it was decided by the Boeotarchs, the Corinthians, the Megarians, and the envoys from Thrace first to interchange oaths together to give help to each other whenever it was required and not to make war or peace except in common; after which the Boeotians and Megarians, who acted together, should make the alliance with Argos. But before the oaths were taken the Boeotarchs communicated these proposals to the four councils of the Boeotians, in whom the supreme power resides, and advised them to interchange oaths with all such cities as should be willing to enter into a defensive league with the Boeotians. But the members of the Boeotian councils refused their assent to the proposal, being afraid of offending Lacedaemon by entering into a league with the deserter Corinth; the Boeotarchs not having acquainted them with what had passed at Lacedaemon and with the advice given by Cleobulus and Xenares and the Boeotian partisans there, namely, that they should become allies of Corinth and Argos as a preliminary to a junction with Lacedaemon; fancying that, even if they should say nothing about this, the councils would not vote against what had been decided and advised by the Boeotarchs. This difficulty arising, the Corinthians and the envoys from Thrace departed without anything having been concluded; and the Boeotarchs, who had previously intended after carrying this to try and effect the alliance with Argos, now omitted to bring the Argive question before the councils, or to send to Argos the envoys whom they had promised; and a general coldness and delay ensued in the matter.
In this same winter Mecyberna was assaulted and taken by the Olynthians, having an Athenian garrison inside it.
All this while negotiations had been going on between the Athenians and Lacedaemonians about the conquests still retained by each, and Lacedaemon, hoping that if Athens were to get back Panactum from the Boeotians she might herself recover Pylos, now sent an embassy to the Boeotians, and begged them to place Panactum and their Athenian prisoners in her hands, in order that she might exchange them for Pylos. This the Boeotians refused to do, unless Lacedaemon made a separate alliance with them as she had done with Athens. Lacedaemon knew that this would be a breach of faith to Athens, as it had been agreed that neither of them should make peace or war without the other; yet wishing to obtain Panactum which she hoped to exchange for Pylos, and the party who pressed for the dissolution of the treaty strongly affecting the Boeotian connection, she at length concluded the alliance just as winter gave way to spring; and Panactum was instantly razed. And so the eleventh year of the war ended.
In the first days of the summer following, the Argives, seeing that the promised ambassadors from Boeotia did not arrive, and that Panactum was being demolished, and that a separate alliance had been concluded between the Boeotians and Lacedaemonians, began to be afraid that Argos might be left alone, and all the confederacy go over to Lacedaemon. They fancied that the Boeotians had been persuaded by the Lacedaemonians to raze Panactum and to enter into the treaty with the Athenians, and that Athens was privy to this arrangement, and even her alliance, therefore, no longer open to them—a resource which they had always counted upon, by reason of the dissensions existing, in the event of the noncontinuance of their treaty with Lacedaemon. In this strait the Argives, afraid that, as the result of refusing to renew the treaty with Lacedaemon and of aspiring to the supremacy in Peloponnese, they would have the Lacedaemonians, Tegeans, Boeotians, and Athenians on their hands all at once, now hastily sent off Eustrophus and Aeson, who seemed the persons most likely to be acceptable, as envoys to Lacedaemon, with the view of making as good a treaty as they could with the Lacedaemonians, upon such terms as could be got, and being left in peace.
Having reached Lacedaemon, their ambassadors proceeded to negotiate the terms of the proposed treaty. What the Argives first demanded was that they might be allowed to refer to the arbitration of some state or private person the question of the Cynurian land, a piece of frontier territory about which they have always been disputing, and which contains the towns of Thyrea and Anthene, and is occupied by the Lacedaemonians. The Lacedaemonians at first said that they could not allow this point to be discussed, but were ready to conclude upon the old terms. Eventually, however, the Argive ambassadors succeeded in obtaining from them this concession: For the present there was to be a truce for fifty years, but it should be competent for either party, there being neither plague nor war in Lacedaemon or Argos, to give a formal challenge and decide the question of this territory by battle, as on a former occasion, when both sides claimed the victory; pursuit not being allowed beyond the frontier of Argos or Lacedaemon. The Lacedaemonians at first thought this mere folly; but at last, anxious at any cost to have the friendship of Argos they agreed to the terms demanded, and reduced them to writing. However, before any of this should become binding, the ambassadors were to return to Argos and communicate with their people and, in the event of their approval, to come at the feast of the Hyacinthia and take the oaths.
The envoys returned accordingly. In the meantime, while the Argives were engaged in these negotiations, the Lacedaemonian ambassadors—Andromedes, Phaedimus, and Antimenidas—who were to receive the prisoners from the Boeotians and restore them and Panactum to the Athenians, found that the Boeotians had themselves razed Panactum, upon the plea that oaths had been anciently exchanged between their people and the Athenians, after a dispute on the subject to the effect that neither should inhabit the place, but that they should graze it in common. As for the Athenian prisoners of war in the hands of the Boeotians, these were delivered over to Andromedes and his colleagues, and by them conveyed to Athens and given back. The envoys at the same time announced the razing of Panactum, which to them seemed as good as its restitution, as it would no longer lodge an enemy of Athens. This announcement was received with great indignation by the Athenians, who thought that the Lacedaemonians had played them false, both in the matter of the demolition of Panactum, which ought to have been restored to them standing, and in having, as they now heard, made a separate alliance with the Boeotians, in spite of their previous promise to join Athens in compelling the adhesion of those who refused to accede to the treaty. The Athenians also considered the other points in which Lacedaemon had failed in her compact, and thinking that they had been overreached, gave an angry answer to the ambassadors and sent them away.
The breach between the Lacedaemonians and Athenians having gone thus far, the party at Athens, also, who wished to cancel the treaty, immediately put themselves in motion. Foremost amongst these was Alcibiades, son of Clinias, a man yet young in years for any other Hellenic city, but distinguished by the splendour of his ancestry. Alcibiades thought the Argive alliance really preferable, not that personal pique had not also a great deal to do with his opposition; he being offended with the Lacedaemonians for having negotiated the treaty through Nicias and Laches, and having overlooked him on account of his youth, and also for not having shown him the respect due to the ancient connection of his family with them as their proxeni, which, renounced by his grandfather, he had lately himself thought to renew by his attentions to their prisoners taken in the island. Being thus, as he thought, slighted on all hands, he had in the first instance spoken against the treaty, saying that the Lacedaemonians were not to be trusted, but that they only treated, in order to be enabled by this means to crush Argos, and afterwards to attack Athens alone; and now, immediately upon the above occurring, he sent privately to the Argives, telling them to come as quickly as possible to Athens, accompanied by the Mantineans and Eleans, with proposals of alliance; as the moment was propitious and he himself would do all he could to help them.
Upon receiving this message and discovering that the Athenians, far from being privy to the Boeotian alliance, were involved in a serious quarrel with the Lacedaemonians, the Argives paid no further attention to the embassy which they had just sent to Lacedaemon on the subject of the treaty, and began to incline rather towards the Athenians, reflecting that, in the event of war, they would thus have on their side a city that was not only an ancient ally of Argos, but a sister democracy and very powerful at sea. They accordingly at once sent ambassadors to Athens to treat for an alliance, accompanied by others from Elis and Mantinea.
At the same time arrived in haste from Lacedaemon an embassy consisting of persons reputed well disposed towards the Athenians—Philocharidas, Leon, and Endius—for fear that the Athenians in their irritation might conclude alliance with the Argives, and also to ask back Pylos in exchange for Panactum, and in defence of the alliance with the Boeotians to plead that it had not been made to hurt the Athenians. Upon the envoys speaking in the senate upon these points, and stating that they had come with full powers to settle all others at issue between them, Alcibiades became afraid that, if they were to repeat these statements to the popular assembly, they might gain the multitude, and the Argive alliance might be rejected, and accordingly had recourse to the following stratagem. He persuaded the Lacedaemonians by a solemn assurance that if they would say nothing of their full powers in the assembly, he would give back Pylos to them (himself, the present opponent of its restitution, engaging to obtain this from the Athenians), and would settle the other points at issue. His plan was to detach them from Nicias and to disgrace them before the people, as being without sincerity in their intentions, or even common consistency in their language, and so to get the Argives, Eleans, and Mantineans taken into alliance. This plan proved successful. When the envoys appeared before the people, and upon the question being put to them, did not say as they had said in the senate, that they had come with full powers, the Athenians lost all patience, and carried away by Alcibiades, who thundered more loudly than ever against the Lacedaemonians, were ready instantly to introduce the Argives and their companions and to take them into alliance. An earthquake, however, occurring, before anything definite had been done, this assembly was adjourned.