Lacedæmon’s two royal houses, however, had been retained, and it should have been the function of these to maintain discipline in the state. But the newly-acquired wealth of Sparta, coupled with the growing authority of the ephors, appreciably diminished the power of the kings. Reduced to the rôle of hereditary generals these monarchs could never depart on an expedition without being accompanied by ten supervisors, who, under the name of councillors, in reality directed all the military operations. During the last years of the Peloponnesian War the decisive battles had been fought on sea, and the fleets were commanded, captives sold, cities ransomed and subsidies received from the Great King by men who were not of pure Spartan blood. Aristotle in his _Politics_ calls the office of admiral among them “a second royalty.” Lysander was not obeying the dictates of ambition when, as Sparta’s leading citizen, he undertook to reform for his own advantage the political system of the city. “He could not,” says Plutarch, “see without regret a city whose glory he had done so much to increase governed by kings who had no more ability to rule than he, so he formed the plan of depriving the reigning houses of their dignity to make it the common appanage of all the Heraclids.” The discovery of the plot of Cinadon [described later] revealed an abyss of hatred yawning beneath the social system of Sparta, and at the same time an alarming unanimity of feeling between the inferior classes, both free and slaves. A civil war could easily have resulted from the situation; but Sparta, with that vigilance which continued distrust arouses in all oligarchies, discovered and baffled all the plots that were formed against her. Yet in spite of this hostility between the classes, in spite of many other difficulties, such as strife between the kings on the one hand and the senators and the ephors on the other, in which the kings were reduced almost to the condition of subjects, and rivalry between the kings themselves, the Spartan government, by reason of concentration of authority in a few hands, was powerful enough for action against other states. At home and abroad the ephors and the harmosts, those so-called conciliators, exercised a permanent dictatorship, maintaining garrisons at Megara, Ægina, Tanagra, Pharsalus, Heraclea in Trachinia, at the entrance of Thermopylæ; also Dionysius of Syracuse was Sparta’s ally. But this power, widespread as it was, was scarcely more than an influence, and an influence that was already on the wane, since the nation that lacks citizens has no resources within itself.