Athens thus throw away the golden opportunity of recruiting her shattered forces of which she stood so much in need； and to this unfortunate advice must be ascribed the calamities which subsequently overtook her。
The possession of the Bosporus reopened to the Athenians the trade of the Euxine。 From his lofty fortress at Decelea the Spartan king Agris could descry the corn…ships from the Euxine sailing into the Harbour of the Piraeus； and felt how fruitless it was to occupy the fields of Attica whilst such abundant supplies of provisions were continually finding their way to the city。
In B。C。 408 the important towns of Chalcedon； Selymbria； and Byzantium fell into the hands of the Athenians； thus leaving them undisputed masters of the Propontis。
These great achievements of Alcibiades naturally paved the way for his return to Athens。 In the spring of 407 B。C。 he proceeded with the fleet to Samos； and from thence sailed to Piraeus。 His reception was far more favourable than he had ventured to anticipate。 The whole population of Athens flocked down to Piraeus to welcome him； and escorted him to the city。 He seemed to be in the present juncture the only man capable of restoring the grandeur and the empire of Athens： he was accordingly named general with unlimited powers； and a force of 100 triremes； 1500 hoplites； and 150 cavalry placed at his disposal。 Before his departure he took an opportunity to atone for the impiety of which he had been suspected。 Although his armament was in perfect readiness； he delayed its sailing till after the celebration of the Eleusinian mysteries at the beginning of September。 For seven years the customary procession across the Thriasian plain had been suspended； owing to the occupation of Decelea by the enemy； which compelled the sacred troop to proceed by sea。 Alcibiades now escorted them on their progress and return with his forces； and thus succeeded in reconciling himself with the offended goddesses and with their holy priests； the Eumolpidae。
Meanwhile a great change had been going on in the state of affairs in the East。 We have already seen that the Great King was displeased with the vacillating policy of Tissaphernes； and had determined to adopt more energetic measures against the Athenians。 During the absence of Alcibiades； Cyrus； the younger son of Darius； a prince of a bold and enterprising spirit； and animated with a lively hatred of Athens； had arrived at the coast for the purpose of carrying out the altered policy of the Persian court； and with that view he had been invested with the satrapies of Lydia； the Greater Phrygia； and Cappadocia。 The arrival of Cyrus opens the last phase of the Peloponnesian war。 Another event； in the highest degree unfavourable to the Athenian cause； was the accession of Lysander； as NAVARCHUS； to the command of the Peloponnesian fleet。 Lysander was the third of the remarkable men whom Sparta produced during the war。 In ability； energy； and success he may be compared with Brasidas and Gylippus； though immeasurably inferior to the former in every moral quality。 He was born of poor parents； and was by descent one of those Lacedaemonians who could never enjoy the full rights of Spartan citizenship。 His ambition was boundless； and he was wholly unscrupulous about the means which he employed to gratify it。 In pursuit of his objects he hesitated at neither deceit； nor perjury； nor cruelty； and he is reported to have laid it down as one of his maxims in life to avail himself of the fox's skin where the lion's failed。
Lysander had taken up his station at Ephesus； with the Lacedaemonian fleet of 70 triremes； and when Cyrus arrived at Sardis； in the spring of 407 B。C。； he hastened to pay his court to the young prince； and was received with every mark of favour。 A vigrorous line of action was resolved on。 Cyrus at once offered 500 talents； and affirmed that； if more were needed； he was prepared even to coin into money the very throne of gold and silver on which he sat。 In a banquet which ensued Cyrus drank to the health of Lysander； and desired him to name any wish which he could gratify。 Lysander immediately requested an addition of an obolus to the daily pay of the seamen。 Cyrus was surprised at so disinterested a demand； and from that day conceived a high degree of respect and confidence for the Spartan commander。 Lysander on his return to Ephesus employed himself in refitting his fleet； and in organising clubs in the Spartan interest in the cities of Asia。
Alcibiades set sail from Athens in September。 Being ill provided with funds for carrying on the war； he was driven to make predatory excursions for the purpose of raising money。 During his absence he intrusted the bulk of the fleet at Samos to his pilot； Antiochus； with strict injunctions not to venture on an action。 Notwithstanding these orders； however； Antiochus sailed out and brought the Peloponnesian fleet to an engagement off Notium； in which the Athenians were defeated with the loss of 15 ships； and Antiochus himself was slain。 Among the Athenian armament itself great dissatisfaction was growing up against Alcibiades。 Though at the head of a splendid force； he had in three months time accomplished literally nothing。 His debaucheries and dissolute conduct on shore were charged against him； as well as his selecting for confidential posts not the men best fitted for them； but those who； like Antiochus were the boon companions and the chosen associates of his revels。 These accusations forwarded to Athens； and fomented by his secret enemies； soon produced an entire revulsion in the public feeling towards Alcibiades。 The Athenians voted that he should be dismissed from his command； and they appointed in his place ten new generals； with Conon at their head。
The year of Lysander's command expired about the same time as the appointment of Conon to the Athenian fleet。 Through the intrigues of Lysander； his successor Callicratidas was received with dissatisfaction both by the Lacedaemonian seamen and by Cyrus。 Loud complaints were raised of the impolicy of an annual change of commanders。 Lysander threw all sorts of difficulties into the way of his successor； to whom he handed over an empty chest； having first repaid to Cyrus all the money in his possession under the pretence that it was a private loan。 The straightforward conduct of Callicratidas； however； who summoned the Lacedaemonian commanders； and after a dignified remonstrance； plainly put the question whether he should return home or remain； silenced all opposition。 But he was sorely embarrassed for funds。 Cyrus treated him with haughtiness； and when he waited on that prince at Sardis； he was dismissed not only without money； but even without an audience。 Callicratidas； however； had too much energy to be daunted by such obstacles。 Sailing with his fleet from Ephesus to Miletus； he laid before the assembly of that city； in a spirited address； all the ill they had suffered at the hands of the Persians； and exhorted them to bestir themselves and dispense with the Persian alliance。 He succeeded in persuading the Milesians to make him a large grant of money； whilst the leading men even came forward with private subscriptions。 By means of this assistance he was enabled to add 50 triremes to the 90 delivered to him by Lysander； and the Chians further provided him with ten days' pay for the seamen。
The fleet of Callicratidas was now double that of Conon。 The latter was compelled to run before the superior force of Callicratidas。 Both fleets entered the harbour of Mytilene at the same time； where a battle ensued in which Conon lost 30 ships； but he saved the remaining 40 by hauling them ashore under the walls of the town。 Callicratidas then blockaded Mytilene both by sea and land； but Conon contrived to despatch a trireme to Athens with the news of his desperate position。
As soon as the Athenians received intelligence of the blockade of Mytilene； vast efforts were made for its relief； and we learn with surprise that in thirty days a fleet of 110 triremes was equipped and despatched from Piraeus。 The armament assembled at Samos； where it was reinforced by scattered Athenian ships； and by contingents from the allies； to the extent of 40 vessels。 The whole fleet of 150 sail then proceeded to the small islands of Arginusae； near the coast of Asia； and facing Malea； the south… eastern cape of Lesbos。 Callicratidas； who went out to meet them； took up his station at the latter point； leaving a squadron of 50 ships to maintain the blockade of Mytilene。 He had thus only 120 ships to oppose to the 150 of the Athenians； and his pilot advised him to retire before the superior force of the enemy。 But Callicratidas replied that he would not disgrace himself by flight； and that if he should perish Sparta would not feel his loss。 The battle was long and obstinate。 All order was speedily lost； and the ships fought singly with one another； In one of these contests； Callicratidas； who stood on the prow of his vessel ready to board the enemy； was thrown overboard by the shock of the vessels as they met； and perished。 At length victory began to declare for the Athenians。 The Lacedaemonians； after losing 77 vessels； retreate