History of the Peloponnesian War

Demosthenes then, disposing his army by two hundred and more in a company, and in some less, [at certain distances], seized on all the higher grounds to the end that the enemies, compassed about on every side, might the less know what to do or against what part to set themselves in battle and be subject to the shot of the multitude from every part; and when they should make head against those that fronted them, be charged behind;

and when they should turn to those that were opposed to their flanks, be charged at once both behind and before. And which way soever they marched, the light-armed and such as were meanliest provided of arms followed them at the back with arrows, darts, stones, and slings, who have courage enough afar off, and could not be charged, but would overcome flying, and also press the enemies when they should retire. With this design Demosthenes both intended his landing at first and afterwards ordered his forces accordingly in the action.

Those that were about Epitadas, who were the greatest part of those in the island, when they saw that the foremost guard was slain and that the army marched towards them, put themselves in array and went towards the men of arms of the Athenians with intent to charge them; for these were opposed to them in front, and the light-armed soldiers on their flanks and at their backs.

But they could neither come to join with them nor any way make use of their skill. For both the lightarmed soldiers kept them off with shot from either side, and the men of arms advanced not. Where the light-armed soldiers approached nearest, they were driven back; but returning, they charged them afresh, being men armed lightly, and that easily got out of their reach by running, especially the ground being uneasy and rough by having been formerly desert, so that the Lacedaemonians in their armour could not follow them.