And so it came to Salamis.
'You will be the ruin of many a mother's son.' More menacingly than ever now, with the allied fleet moored off the island, and the Persians at Phalerum, the ambiguities of the oracle were weighing on people's minds. But it was not only among the Greek high command that Apollo's teasing words were being debated: the Persians too, ever assiduous in their intelligence work, would surely have learned of the prophecy. 'He who revealed truth to my ancestors':
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so Darius himself had described the archer god. Yet, respectful of Apollo though the Persians had often shown themselves, their faith in the pronouncements of Delphi was hardly, of course, as instinctive as that of their enemies. There must have been many on the Great King's staff, puzzling over the phrase 'divine Salamis', who found themselves debating its precise authorship. Perhaps someone aside from the god had breathed a word in the Pythia's ear. A priest, for instance? Delphi was the centre of a great web of international contacts, after all, and Apollo's servants, with their profound knowledge of current affairs, were as well qualified as anyone to forecast the likely progress of the war.
They would certainly not have forgotten the fate of the last Greek attempt to defeat an imperial armada. Fourteen years previously, some 350 Ionian triremes, outnumbered almost two to one by the Persian fleet, had rowed out to battle off the Milesian island of Lade and been annihilated. Just as Miletus had been the heart of resistance to the Persians then, so Athens was now. And the only potential equivalent to Lade off Attica was, of course, Salamis. Whether Persian strategists believed the Delphic prophecy to have derived from the heavens or from mere mortal calculations, it would certainly have buttressed them in their belief that the hand of a god infinitely greater than Apollo was guiding their affairs. The great wheels of time, turning as they did at the command of he who dwelt beyond them, Ahura Mazda, were clearly grinding with a quite merciless precision. Once already a fractious alliance of Greek squadrons, when menaced by a much larger Persian fleet, had disintegrated amid treachery and back-stabbing — and now, with a mysterious but no doubt divinely sanctioned symmetry, history appeared destined to repeat itself.
To be sure, there were some among Xerxes' entourage who urged their master not to depend upon this. Demaratus, for instance, with a hearty appreciation of what his countrymen would least like the Great King to do, had advocated the launching of an amphibious operation directly against Lacedaemon — 'for you need hardly worry that the Spartans, if the flames of war are consuming their homeland, will bother themselves coming to the rescue of anyone else in Greece'.
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True enough; but so depleted had storms and enemy action left the imperial navy that the detachment of even a small task force from the main body of the fleet might leave the Greeks a match for either. The proposal was therefore vetoed. So too — although after more soul-searching — was the advice of the formidable Queen Artemisia of Halicarnassus. When the Great King, descending in state upon Phalerum, summoned his admirals to a council of war, hers was a lone voice raised in warning against the plan to force a second Lade. Battle, she insisted, was a pointless risk. Athens was captured, and autumn was closing in. Better by far, then, to maintain a stand-off, and leave the Greek squadrons either to starve or to 'scatter and sail for their homes'.
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A shrewd analysis, as Xerxes himself was well aware; but time was running out, and he could not afford to adopt it. For the Great King to pass a winter on the remote frontiers of the West was clearly out of the question: a devastated Athens was no place from which to administer the world. Having graced the expedition against Europe with his royal presence, it was now imperative for him to finish the war before the close of the campaigning season. Only a thumping victory while the weather held would do.
How gratifying, then, that the imperial spy chiefs could report to their royal master that the enemy, squabbling and snarling in their camp, were behaving true to form. Just as hatreds, doubts and fears had once riven the Ionian squadrons off Lade, so now, across the straits off Salamis, a Greek fleet appeared to be on the verge of a similar implosion. The proofs of defeatism could hardly be doubted. Already, on the day of the burning of the Acropolis, several crews had stampeded in panic down to their boats and tried to raise their sails ready for flight. That same evening, it was reported, the high command itself had fragmented yet again into rival factions, Peloponnesians against Athenians and their supporters. The insults bandied had been the talk of the whole Greek camp. Adeimantus, it was said, had sneered at Themistocles as a 'refugee', and warned him, when he spoke out of turn, that 'athletes who start a race before the signal is given are whipped'. 'Yes,' Themistocles was claimed to have retorted bitterly, 'and those who are left behind never win the crown.'
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Only by threatening to withdraw the entire Athenian fleet from the battle-line and sail at once for Italy, and permanent exile, had he ultimately had his way. But it was impossible to say for how long. What if the Peloponnesians, panicking at the prospect of being bottled up in the straits, finally opted to call his bluff? What options then for the Athenians and their fleet?
Persian intelligence chiefs, with more than sixty years' experience of exploiting Greek fractiousness to draw upon, knew precisely how best to find out. In the wake of the conference at Phalerum, with the Great
King's wish to conjure up a second Lade now clear in his servants' minds, a contingent of Persian troops was ordered to take the road to the Isthmus. Since the corniche beyond Megara had been destroyed, and the Isthmus itself solidly fortified, the expedition had little prospect of storming the gates of the Peloponnese — but that was not its mission. Leaving Athens, rounding Mount Aigaleos, following the Sacred Way towards Eleusis, the soldiers marched along the southern reaches of the Attic coast. Their weapons glittered brightly. Their war songs could be heard for miles. Their feet, thirty thousand pairs of them, pounded the road. A great cloud of dust, rising in their wake, drifted on the breeze, and was borne across the straits towards Salamis.
Where the reaction was — just as Persian strategists had anticipated that it would be — one of consternation. Mutinous whisperings began to sweep through the Peloponnesian contingents yet again. Then, with afternoon fading into evening, and anxious sailors already besieging their captains with demands to sail for the Isthmus, the Great King gave instructions that the screws be tightened further. Squadrons of the imperial fleet, 'bearing down on Salamis, and taking up their stations with a perfect show of leisure', began to patrol directly off the island — menacing the escape routes.
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As the setting sun blazed its reflection across the sea from Salamis to the Isthmus, many Peloponnesians appeared on the verge of insurrection.
For there they were, stranded on Salamis, obliged to fight in defence of Athenian territory, and certain, if they were defeated, to find themselves trapped and blockaded on an island. And all the while their own country stood defenceless, even as the barbarians, marching through the night, were advancing directly on the Peloponnese.
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This, since the very earliest days of contact between the two peoples, was how the Persians had always played cat and mouse with the Greeks. News of the wrangling on Salamis, brought to the Great King by his agents, confirmed him in his assurance that he had gauged the character of his enemies to perfection. Now, with the whole Greek fleet apparently at daggers drawn, it was time to bait the trap that he had laid with such cunning. It was almost sunset. The squadrons on patrol off Salamis were ordered back to base.
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This withdrawal, performed in full view of the allied lookouts, left the escape route to the Isthmus very obviously — and very temptingly — open. As the Persian admiralty had discovered at Artemisium, Greek sailors were hardly reluctant to conduct a hurried nocturnal retreat if a sudden crisis appeared to demand it. The Peloponnesians, not knowing when the opportunity to bolt from their rat-hole might present itself again, would surely feel themselves facing just such a crisis that evening. If so — and irrespective of whether the Athenians agreed to sail with them — they might very well take their chance and flee the straits. Just as had happened at Lade, a Greek fleet would then disintegrate into fragments.
But Xerxes, weighing the odds that evening, still had to know for sure. The ambush could be attempted only once. It was not enough merely to foster division; active treachery was needed, too. The ideal would be a double-agent within the ranks of the Greek high command. Fortunate, then, that the Persian intelligence chiefs had long and fruitful experience of recruiting top-level moles. It was, after all, as the royal spy-masters would hardly have needed to point out, the bribing of the Samian captains that had doomed the Ionian battle-line at Lade. With that delectable precedent before them, it beggars belief that the Great King's agents, armed with gold and the promise of royal patronage, would not have been active in the allied camp on Salamis. And if so — who might their target have been? The Persians, in the war of nerves that they were waging with such proficiency against the various Greek divisions, would surely have been tempted to launch a two-pronged attack. Even as they menaced the Peloponnesians, pressuring them to flee, they would have been alert to the anxieties and resentments of those who faced being left in the lurch: the Aeginetans, the Megarians — and the Athenians.
'The man who co-operates with me, on him will I bestow rich rewards.'
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This, baldly stated, had always been the manifesto of the Persian monarchy. What rewards, then, for the man who had it within his power to betray the whole Greek fleet, and win the war, and the West itself, for the Great King? Splendid and glorious beyond compare, no doubt. Little matter that Themistocles was the native of what for years had been a demon-racked stronghold of the Lie — not now that fire, having consumed the Acropolis, had purged Athens of evil. If they would only prostrate themselves with due contrition before the royal presence, the Athenians might certainly hope to be graced with a pardon — and perhaps even, if they gave good service, with marks of the Great King's favour. No man in the world, after all, had the power to be more gracious, more generous, more beneficent. The rewards that I bestow — they are in proportion to the help that I am given.'
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We are nowhere openly told of contacts between Themistocles and Persian agents. The murk that veils treachery and espionage is often impenetrable — and all the more so at a remove of two and a half thousand years. What we do know, however, is that shortly after the Persian squadrons had returned from patrol back to Phalerum, and while the various Greek commanders, digesting the day's alarming events, were reported to be at loggerheads with one another, a tiny boat was slipping out from the dark ranks of the Athenian fleet and making its way across the straits. On board was the trusted tutor of Themistocles' sons, a slave by the name of Sicinnus. It is possible, since his name derived from Phrygia, a satrapy to the east of Lydia, that he spoke some Persian.
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It is also possible that his arrival on the mainland did not come as a total surprise to those who met him — for no sooner had Sicinnus set foot on dry land than he was being hurried into the presence of the Persian high command. Certainly, the message that he had to deliver was of the utmost urgency: the Greeks, Sicinnus reported, were planning a getaway that very night. 'Only block their escape,' came the advice from Themistocles, 'and you will have a perfect chance of success.' Meanwhile, the Athenian admiral himself, revolted by his allies' pusillanimity, was described by his slave as being 'in full sympathy with the king, and earnestly longing for a Persian victory'. The imperial espionage chiefs, if they had indeed been fishing for a communication from Themistocles, could hardly have hoped to land better news.
A dazzling coup indeed. The Great King, who had no doubt been alerted to the prospect of an intelligence breakthrough coming that evening, was informed of it at once. Contingency plans, evidently prepared in the expectation of just such an opportunity, were put smoothly into action. The fleet was ordered to ready itself for battle. Rising from their suppers, oarsmen hurried to their benches, marines to their stations on deck. 'Crew cheered crew, all the way down the length of the battle-line,'
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and then, rank after rank, pulling out from Phalerum into the waiting darkness, they took to sea. No more cheering now — for the slightest sound might alert the enemy. Instead, with only the measured beating of their oars to mark their progress, the various squadrons glided through the night to the positions allotted them by their master. One, comprising the two hundred ships of the Egyptians, had been ordered to circle the entire south coast of Salamis, aiming for the narrow bottleneck of the westernmost strait, there to stopper it, in case the Greeks should attempt to escape that way. Others, serrying themselves in ranks of three, cruised into position off the eastern channel, out of which, so their captains had assured them, the panicking Peloponnesians would be bolting at any minute. Just beyond the exit, where it led out to the open sea, there was an island, sacred to Pan, known to the Athenians as Psyttaleia; here, setting the seal on the ruthless efficiency of his preparations, the Great King stationed a garrison of four hundred infantry. Come the midnight breakout, these troops would be 'directly in the passage of the expected action, ready for all the men and shattered ships that would soon be swept onto the island's rocks'.
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Nothing had been left to chance. Not a single Greek was to be permitted to escape the Great King's deadly trap.