History of the Peloponnesian War

The Lacedaemonians, then, were drawn up in this way. On the side of their opponents, their right wing was occupied by the Mantineans, because the action was to be fought in their country; and by their side were the Arcadian allies. Then came the thousand picked men of the Argives, for whom the state had for a long time furnished at the public expense a course of training in military matters; next to them the other Argives; and after these, their allies the Cleonaeans and Orneans; then the Athenians, holding the extreme left, and their own cavalry with them.

Such was the order of battle and the preparation on both sides. The army of the Lacedaemonians appeared the larger of the two;