History of the Peloponnesian War

Then, when the reserve companies met them, at whatever point they charged; and Brasidas himself with his picked men withstood the pressure, and they had, contrary to their expectation, resisted their first rush, and, after that, received and repelled them when they came on, but retired themselves, when the enemy withdrew: then indeed the main body of the barbarians ceased attacking the Greeks with Brasidas in the the open country; and having left a portion of their forces to follow and harass them, the rest advanced at a run against the flying Macedonians, cutting down such as they fell in with; and got in time to preoccupy the narrow pass which runs between two hills, into the country of Arrhibaeus, knowing that there was no other way of retreat for Brasidas. And when he was coming to just where the road now became impassable, they proceeded to surround him, with a view to cutting him off.

He, on perceiving it, gave orders to his band of three hundred to advance at a run to that one of the hills which he thought they might take more easily, as quickly as each man could, without observing any order; and to endeavour to dislodge from it the barbarians who were already upon it, before their main force that was surrounding him should join them there.

Accordingly, they charged, and overpowered the party on the hill, and the main force of the Greeks now advanced more easily up to it; for the barbarians were frightened on finding their men on that side dislodged from the height, and no longer followed the main body, considering that they were now on the borders, and had escaped them.