Titus Livius (Livy), The History of Rome, Book 26
D. Spillan, A.M., M.D., Cyrus Evans, Ed.

25. To Philip intelligence of the defection of the Aetolians was brought while in winter quarters at Pella. [2] As he was about to march an army into Greece at the beginning of the spring, he undertook a sudden expedition into the territories of Oricum and Apollonia, in order that Macedonia might not be molested by the Illyrians, and the cities bordering upon them, in consequence of the terror he would thus strike them with in turn. [3] The Apollonians came out to oppose him, but he drove them, terrified and dismayed, within their walls. After devastating the adjacent parts of Illyricum he turned his course into Pelagonia, with the same expedition. [4] He then took Sintia, a town of the Dardanians, which would have afforded them a passage into Macedonia. Having with the greatest despatch performed these achievements, not forgetting the war made upon him by the Aetolians and Romans in conjunction, he marched down into Thessaly through Pelagonia, Lyncus, and Bottiaea. [5] He trusted that people might be induced to take part with him in the war against the Aetolians, and, therefore, leaving Perseus with four thousand armed men at the gorge, which [6??] formed the entrance into Thessaly, to prevent the Aetolians from passing it, before he should be occupied with more important business, he marched his army into Macedonia, and thence into Thrace and Maedica. [7] This nation had been accustomed to make incursions into Macedonia when they perceived the king engaged in a foreign war, and the kingdom left unprotected. [8] Accordingly, he began to devastate the lands in the neighbourhood of Phragandae, and to lay siege to the city Jamphorina, the capital and chief fortress of Maedica. [9] Scopas, on hearing that the king had gone into Thrace, and was engaged in a war there, armed all the Aetolian youths, and prepared to invade Acarnania. [10] The Acarnanian nation, unequal to their enemy in point of strength, and seeing that they had lost Aeniadae and Nasus, and moreover that the Roman arms were threatening them, prepare the war rather with rage than prudence. Having sent their wives, children, and those who were above sixty years old. [11] [p. 1052]into the neighbouring parts of Epirus, all who were between the ages of fifteen and sixty, bound each other by an oath not to return unless victorious. [12] That no one might receive into his city or house, or admit to his table or hearth, such as should retire from the field vanquished, they drew up a form of direful execration against their countrymen who should do so; and the most solemn entreaty they could devise, to friendly states. [13] At the same time they entreated the Epirotes to bury in one tomb such of their men as should fall in the encounter, adding this inscription over their remains: [14] HERE LIE THE ACARNANIANS, WHO DIED WHILE FIGHTING IN DE- FENCE OF THEIR COUNTRY, AGAINST THE VIOLENCE AND IN- JUSTICE OF THE AeTOLIANS. Having worked up their courage to the highest pitch by these means, they fixed their camp at the extreme borders of their country in the way of the enemy; [15] and sending messengers to Philip to inform him of the critical situation in which they stood, they obliged him to suspend the war in which he was engaged, though he had gained possession of Jamphorina by surrender, and had succeeded in other respects. [16] The ardour of the Aetolians was damped, in the first instance, by the news of the combination formed by the Acarnanians; but afterwards the intelligence of Philip's approach compelled them even to retreat into the interior of the country. [17] Nor did Philip proceed farther than Dium, though he had marched with great expedition to prevent the Acarnanians being overpowered; and when he had received information that the Aetolians had returned out of Acarnania, he also returned to Pella.