The appearance of Antigonus with an army before Argos implies a series of events, which are scarcely noticed by any of the authors who have preserved fragments of the history of this period. Pausanias says the most, when he mentions that, while Pyrrhus was occupied with the invasion of Greece, Antigonus recovered the Macedonian cities. Pyrrhus, as we have seen, had given some offence to the national feelings, and even without such an occasion, it would not have been surprising that a revolution should have taken place during his absence. But the recovery of places in Macedonia cannot have been the first or chief object that engaged the attention of Antigonus. For the present all he wanted was an army to enable him to meet his rival in Greece, and in this period nothing was easier than to raise one. There were every where military adventurers ready to flock to any standard which held out a prospect of prey or plunder. It is probable that, as soon as he had collected a sufficient force, he began his march, reserving the settlement of Macedonia for his future leisure. After the fall of Pyrrhus, the greater part of his army, which was chiefly composed of Macedonians, seems to have passed into the service of Antigonus.