History of the Peloponnesian War

Agis, however, did not take that road, as they expected him to do; but having given orders to the Lacedaemonians, Arcadians, and Epidaurians, he advanced by another and more difficult route, and so came down into the plain of Argos. The Corinthians, Pellenians, and Phliasians marched by another steep road; while the Boeotians, Megareans, and Sicyonians had been ordered to descend by that leading to Nemea, where the Argives were posted, in order that, if the Argives should advance into the plain against his own division, they might hang on their rear, and use their cavalry with effect.

He then, having made these arrangements and entered the plain, proceeded to ravage Saminthus and other places.