The voluntary suffrage of the Greek cities of the coasts and islands of the Aegean first placed Athens at the head of the confederation formed for the further prosecution of the war against Persia. But this titular ascendency was soon converted by her into practical and arbitrary dominion. She protected them from piracy and the Persian power, which soon fell into decrepitude and decay, but she exacted in return implicit obedience to herself. She claimed and enforced a prerogative of taxing them at her discretion, and proudly refused to be accountable for her mode of expending their supplies. Remonstrance against her assessments was treated as factious disloyalty, and refusal to pay was promptly punished as revolt. Permitting and encouraging her subject allies to furnish all their contingents in money, instead of part consisting of ships and men, the sovereign republic gained the double object of training her own citizens by constant and well-paid service in her fleets, and of seeing her confederates lose their skill and discipline by inaction, and become more and more passive and powerless under her yoke. Their towns were generally dismantled, while the imperial city herself was fortified with the greatest care and sumptuousness; the accumulated revenues from her tributaries serving to strengthen and adorn to the utmost her havens, her docks, her arsenals, her theatres, and her shrines, and to array her in that plenitude of architectural magnificence the ruins of which still attest the intellectual grandeur of the age and people which produced a Pericles to plan and a Phidias to execute.
All republics that acquire supremacy over other nations rule them selfishly and oppressively. There is no exception to this in either ancient or modern times. Carthage, Rome, Venice, Genoa, Florence, Pisa, Holland, and republican France, all tyrannized over every province and subject state where they gained authority. But none of them openly avowed their system of doing so upon principle with the candor which the Athenian republicans displayed when any remonstrance was made against the severe exactions which they imposed upon their vassal allies. They avowed that their empire was a tyranny, and frankly stated that they solely trusted to force and terror to uphold it. They appealed to what they called "the eternal law of nature, that the weak should be coerced by the strong." Sometimes they stated, and not without some truth, that the unjust hatred of Sparta against themselves forced them to be unjust to others in self-defence. To be safe, they must be powerful; and to be powerful, they must plunder and coerce their neighbors. They never dreamed of communicating any franchise, or share in office, to their dependants, but jealously monopolized every post of command and all political and judicial power; exposing themselves to every risk with unflinching gallantry; embarking readily in every ambitious scheme; and never suffering difficulty or disaster to shake their tenacity of purpose: in the hope of acquiring unbounded empire for their country, and the means of maintaining each of the thirty thousand citizens who made up the sovereign republic, in exclusive devotion to military occupations, and to those brilliant sciences and arts in which Athens already had reached the meridian of intellectual splendor.
Her great political dramatist speaks of the Athenian empire as comprehending a thousand states. The language of the stage must not be taken too literally; but the number of the dependencies of Athens, at the time when the Peloponnesian confederacy attacked her, was undoubtedly very great. With a few trifling exceptions, all the islands of the Aegean, and all the Greek cities which in that age fringed the coasts of Asia Minor, the Hellespont, and Thrace, paid tribute to Athens, and implicitly obeyed her orders. The Aegean Sea was an Attic lake. Westward of Greece, her influence, though strong, was not equally predominant. She had colonies and allies among the wealthy and populous Greek settlements in Sicily and South Italy, but she had no organized system of confederates in those regions; and her galleys brought her no tribute from the Western seas. The extension of her empire over Sicily was the favorite project of her ambitious orators and generals. While her great statesman, Pericles, lived, his commanding genius kept his countrymen under control, and forbade them to risk the fortunes of Athens in distant enterprises, while they had unsubdued and powerful enemies at their own doors. He taught Athens this maxim; but he also taught her to know and to use her own strength; and when Pericles had departed, the bold spirit which he had fostered overleaped the salutary limits which he had prescribed.
When her bitter enemies, the Corinthians, succeeded, B.C. 431, in inducing Sparta to attack her, and a confederacy was formed of five-sixths of the continental Greeks, all animated by anxious jealousy and bitter hatred of Athens; when armies far superior in numbers and equipment to those which had marched against the Persians were poured into the Athenian territory, and laid it waste to the city walls, the general opinion was that Athens would be reduced, in two or three years at the furthest, to submit to the requisitions of her invaders. But her strong fortifications, by which she was girt and linked to her principal haven, gave her, in those ages, almost all the advantages of an insular position. Pericles had made her trust to her empire of the seas. Every Athenian in those days was a practised seaman. A state, indeed, whose members, of an age fit for service, at no time exceeded thirty thousand, could only have acquired such a naval dominion as Athens once held by devoting and zealously training all its sons to service in its fleets. In order to man the numerous galleys which she sent out, she necessarily employed large numbers of hired mariners and slaves at the oar; but the staple of her crews was Athenian, and all posts of command were held by native citizens. It was by reminding them of this, of their long practice in seamanship, and the certain superiority which their discipline gave them over the enemy's marine, that their great minister mainly encouraged them to resist the combined power of Lacedaemon and her allies. He taught them that Athens might thus reap the fruit of her zealous devotion to maritime affairs ever since the invasion of the Medes; "she had not, indeed, perfected herself; but the reward of her superior training was the rule of the sea—a mighty dominion, for it gave her the rule of much fair land beyond its waves, safe from the idle ravages with which the Lacedaemonians might harass Attica, but never could subdue Athens."
Athens accepted the war with which her enemies threatened her rather than descend from her pride of place; and though the awful visitation of the plague came upon her, and swept away more of her citizens than the Dorian spear laid low, she held her own gallantly against her enemies. If the Peloponnesian armies in irresistible strength wasted every spring her corn-lands, her vineyards, and her olive groves with fire and sword, she retaliated on their coasts with her fleets; which, if resisted, were only resisted to display the preëminent skill and bravery of her seamen. Some of her subject allies revolted, but the revolts were in general sternly and promptly quelled. The genius of one enemy had indeed inflicted blows on her power in Thrace which she was unable to remedy; but he fell in battle in the tenth year of the war, and with the loss of Brasidas the Lacedaemonians seemed to have lost all energy and judgment. Both sides at length grew weary of the war, and in 421 a truce for fifty years was concluded, which, though ill kept, and though many of the confederates of Sparta refused to recognize it, and hostilities still continued in many parts of Greece, protected the Athenian territory from the ravages of enemies, and enabled Athens to accumulate large sums out of the proceeds of her annual revenues. So also, as a few years passed by, the havoc which the pestilence and the sword had made in her population was repaired; and in 415 Athens was full of bold and restless spirits, who longed for some field of distant enterprise wherein they might signalize themselves and aggrandize the state, and who looked on the alarm of Spartan hostility as a mere old-woman's tale. When Sparta had wasted their territory she had done her worst; and the fact of its always being in her power to do so seemed a strong reason for seeking to increase the transmarine dominion of Athens.
The West was now the quarter toward which the thoughts of every aspiring Athenian were directed. From the very beginning of the war Athens had kept up an interest in Sicily, and her squadron had, from time to time, appeared on its coasts and taken part in the dissensions in which the Sicilian Greeks were universally engaged one against the other. There were plausible grounds for a direct quarrel, and an open attack by the Athenians upon Syracuse.
With the capture of Syracuse, all Sicily, it was hoped, would be secured. Carthage and Italy were next to be attacked. With large levies of Iberian mercenaries she then meant to overwhelm her Peloponnesian enemies. The Persian monarchy lay in hopeless imbecility, inviting Greek invasion; nor did the known world contain the power that seemed capable of checking the growing might of Athens, if Syracuse once should be hers.
The national historian of Rome has left us an episode of his great work, a disquisition on the probable effects that would have followed if Alexander the Great had invaded Italy. Posterity has generally regarded that disquisition as proving Livy's patriotism more strongly than his impartiality or acuteness. Yet, right or wrong, the speculations of the Roman writer were directed to the consideration of a very remote possibility. To whatever age Alexander's life might have been prolonged, the East would have furnished full occupation for his martial ambition, as well as for those schemes of commercial grandeur and imperial amalgamation of nations in which the truly great qualities of his mind loved to display themselves. With his death the dismemberment of his empire among his generals was certain, even as the dismemberment of Napoleon's empire among his marshals would certainly have ensued if he had been cut off in the zenith of his power. Rome, also, was far weaker when the Athenians were in Sicily than she was a century afterward in Alexander's time. There can be little doubt but that Rome would have been blotted out from the independent powers of the West, had she been attacked at the end of the fifth century B.C. by an Athenian army, largely aided by Spanish mercenaries, and flushed with triumphs over Sicily and Africa, instead of the collision between her and Greece having been deferred until the latter had sunk into decrepitude, and the Roman Mars had grown into full vigor.
The armament which the Athenians equipped against Syracuse was in every way worthy of the state which formed such projects of universal empire, and it has been truly termed "the noblest that ever yet had been sent forth by a free and civilized commonwealth." The fleet consisted of one hundred and thirty-four war-galleys, with a multitude of storeships. A powerful force of the best heavy-armed infantry that Athens and her allies could furnish was sent on board it, together with a smaller number of slingers and bowmen. The quality of the forces was even more remarkable than the number. The zeal of individuals vied with that of the republic in giving every galley the best possible crew and every troop the most perfect accoutrements. And with private as well as public wealth eagerly lavished on all that could give splendor as well as efficiency to the expedition, the fated fleet began its voyage for the Sicilian shores in the summer of 415.
The Syracusans themselves, at the time of the Peloponnesian war, were a bold and turbulent democracy, tyrannizing over the weaker Greek cities in Sicily, and trying to gain in that island the same arbitrary supremacy which Athens maintained along the eastern coast of the Mediterranean. In numbers and in spirit they were fully equal to the Athenians, but far inferior to them in military and naval discipline. When the probability of an Athenian invasion was first publicly discussed at Syracuse, and efforts were made by some of the wiser citizens to improve the state of the national defences and prepare for the impending danger, the rumors of coming war and the proposal for preparation were received by the mass of the Syracusans with scornful incredulity. The speech of one of their popular orators is preserved to us in Thucydides.