History of the Peloponnesian War

and some of the Athenians also, being thrown into confusion through surrounding the enemy, failed to recognise their own men, and so killed each other. This part then of the Boeotian line was beaten, and retreated on that which was still fighting;

but their right, where the Thebans were posted, had the advantage over the Athenians, and drove them back, and pursued them, though but gradually at first. It happened also, that Pagondas having secretly sent two squadrons of horse round the hill when his left was distressed, and these suddenly making their appearance, the victorious wing of the Athenians, thinking that another army was coming against them, was seized with a panic;

and so now on both parts of the field, owing to this supposition, and to the Thebans' pursuing them and breaking their line, the whole Athenian army took to flight.