History of the Peloponnesian War

And so, on that occasion, the Mantineans reached with their wing far beyond the Sciritae, and the Lacedaemonians and Tegeans farther still beyond the Athenians, inasmuch as their army was larger than theirs.

Agis therefore, being afraid that their left might be surrounded, and thinking that the Mantineans were extending too far beyond it, gave orders for the Sciritae and Brasidean soldiers to advance from their position with a part of their number, and equalize their line to that of the Mantineans; while into the void thus created he ordered Hipponoidas and Aristocles, two of the polemarchs, to move over from the right wing with their lochi, and by throwing themselves into it to fill it up; thinking that their own right would still have an abundance of strength, and that the line opposite the Mantineans would be formed the more firmly.