History of the Peloponnesian War

For after the fight was once begun, notwithstanding that the right wing of the Mantineans did put to flight the Sciritae and Brasideians, and that the Mantineans together with their confederates and those thousand chosen men of Argos, falling upon them in flank by the breach not yet closed up, killed many of the Lacedaemonians, and put to flight and chased them to their carriages, slaying also certain of the elder sort left there for a guard, so as in this part the Lacedaemonians were overcome, yet with the rest of the army, and especially the middle battle where Agis was himself, and those which are called the three hundred horsemen about him, they charged upon the eldest of the Argives, and upon those which are named the five cohorts, and upon the Cleonaeans and Orneates, and certain Athenians arranged amongst them, and put them all to flight;

in such sort as many of them never struck stroke, but as soon as the Lacedaemonians charged gave ground presently, and some for fear to be overtaken were trodden under foot.

As soon as the army of the Argives and their confederates had in this part given ground, they began also to break on either side. The right wing of the Lacedaemonians and Tegeats had now with their surplusage of number hemmed the Athenians in, so as they had the danger on all hands, being within the circle, pent up, and without it, already vanquished.