Titus Livius (Livy), The History of Rome, Book 31
Cyrus Evans, Ed.

28. The war commencing thus brilliantly with this successful expedition, several petty kings and princes, neighbours of the Macedonians, came to the Roman camp: Pleuratus, son of Scerdilaedus, and Amynander, king of the Athamanians; and from the Dardanians, Bato, son of Longarus. [2] This Longarus had, in his own quarrel, supported a war against Demetrius, father of Philip. To their offers of aid, the consul answered, that he would make use of the assistance of the Dardanians, and of Pleuratus, when he should [p. 1369]lead his troops into Macedonia. [3] To Amynander he allotted the part of exciting the Aetolians to war. To the ambassadors of Attalus, (for they also had come at the same time,) he gave directions that the king should wait at Aegina, where he wintered, for the arrival of the Roman fleet; and when joined by that, he should, as before, harass Philip with attacks by sea. [4] To the Rhodians, also, an embassy was sent, to engage them to contribute their share towards carrying on the war. Nor was Philip, who had by this time arrived in Macedonia, remiss in his preparations for the campaign. [5] He sent his son Perseus, then very young, with part of his forces to block up the pass near Pelagonia, appointing persons out of the number of his friends to direct his inexperienced age. [6] Sciathus and Peparethus, no inconsiderable cities, he demolished, lest they should become a prey and prize to the enemy's fleet; despatching at the same time ambassadors to the Aetolians, lest that restless nation might change sides on the arrival of the Romans.