History of the Peloponnesian War

And some also of the Athenians, getting into confusion owing to their surrounding the enemy, mistook and killed one another. Here, then, the Boeotians were defeated and fled to the part of their army which was still fighting;

but the right wing, where the Thebans were, had the better of the Athenians, and pushing them back step by step at first followed after them. It happened also that Pagondas, when their left was in distress, sent two squadrons of cavalry round the hill from a point out of sight, and when these suddenly appeared, the victorious wing of the Athenians, thinking that another army was coming on, was thrown into a panic.

At this time, consequently, owing both to this manoeuvre[*](ie. the attack of the two squadrons of cavalry.) and to the Thebans following them up and breaking their line, a rout of the whole Athenian army ensued.