History of the Peloponnesian War

The Macedonians never even thought of meeting him with infantry; but the Thracian host was, as opportunity offered, attacked by handfuls of their horse, which had been reinforced from their allies in the interior. Armed with cuirasses, and excellent horsemen, wherever these charged they overthrew all before them, but ran considerable risk in entangling themselves in the masses of the enemy, and so finally desisted from these efforts, deciding that they were not strong enough to venture against numbers so superior.

Meanwhile Sitacles opened negotiations with Perdiccas on the objects of his expedition; and finding that the Athenians, not believing that he would come, did not appear with their fleet, though they sent presents and envoys, despatched a large part of his army against the Chalcidians and Bottiaeans, and cutting them up inside their walls laid waste their country.

While he remained in these parts, the people farther south, such as the Thessalians, and the Hellenes as far as Thermopylae, all feared that the army might advance against them, and prepared accordingly.