History of the Peloponnesian War

and that even now he would not go on without their consent; for neither could he, but [only] entreated them not to stop him. When they heard this, they went their ways. And he, by the advice of his guides, before any greater number should unite to hinder him, marched on with all possible speed, staying nowhere by the way. And the same day he set forth from Melitia he reached Pharsalus and encamped by the river Apidanus;

from thence he went to Phacium; from thence into Peraebia. The Peraebians, though subject to the Thessalians, set him at Dion in the dominion of Perdiccas, a little city of the Macedonians situate at the foot of Olympus on the side towards Thessaly.

In this manner Brasidas ran through Thessaly before any there could put in readiness to stop him and came into the territory of the Chalcideans and to Perdiccas.

For Perdiccas and the Chalcideans, all that had revolted from the Athenians, when they saw the affairs of the Athenians prosper, had drawn this army out of Peloponnesus for fear; the Chalcideans, because they thought the Athenians would make war on them first, as having been also incited thereto by those cities amongst them that had not revolted; and Perdiccas, not that he was their open enemy, but because he feared the Athenians for ancient quarrels, but principally because he desired to subdue Arrhibaeus, king of the Lyncesteans.

And the ill success which the Lacedaemonians in these times had was a cause that they obtained an army from them the more easily.