In the Peloponnesus, the Achaean league had united the best elements of Greece proper in a confederacy based on civilization, national spirit, and peaceful preparation for self-defence. But the vigour and more especially the military efficiency of the league had, notwithstanding its outward enlargement, been arrested by the selfish diplomacy of Aratus. The unfortunate variances with Sparta, and the still more lamentable invocation of Macedonian interference in the Peloponnesus, had so completely subjected the Achaean league to Macedonian supremacy, that the chief fortresses of the country thenceforward received Macedonian garrisons, and the oath of fidelity to Philip was annually taken there. Sparta, Elis, Messene The policy of the weaker states in the Peloponnesus, Messene, and Sparta, was determined by their ancient enmity to the Achaean league --an enmity specially fostered by disputes regarding their frontiers --and their tendencies were Aetolian and anti-Macedonian, because the Achaeans took part with Philip. The only one of these states possessing any importance was the Spartan military monarchy, which after the death of Machanidas had passed into the hands of one Nabis. With ever-increasing hardihood Nabis leaned on the support of vagabonds and itinerant mercenaries, to whom he assigned not only the houses and lands, but also the wives and children, of the citizens; and he assiduously maintained connections, and even entered into an association for the joint prosecution of piracy, with the great refuge of mercenaries and pirates, the island of Crete, where he possessed some townships. His predatory expeditions by land, and the piratical vessels which he maintained at the promontory of Malea, were dreaded far and wide; he was personally hated for his baseness and cruelty; but his rule was extending, and about the time of the battle of Zama he had even succeeded in gaining possession of Messene. League of the Greek Cities Rhodes