History of the Peloponnesian War

Thucydides

Thucydides. The Peloponnesian War. London, J. M. Dent; New York, E. P. Dutton. 1910.

At this juncture arrived word from their friends in Tegea that unless they speedily appeared, Tegea would go over from them to the Argives and their allies, if it had not gone over already.

Upon this news a force marched out from Lacedaemon, of the Spartans and Helots and all their people, and that instantly and upon a scale never before witnessed.

Advancing to Orestheum in Maenalia, they directed the Arcadians in their league to follow close after them to Tegea, and going on themselves as far as Orestheum, from thence sent back the sixth part of the Spartans, consisting of the oldest and youngest men, to guard their homes, and with the rest of their army arrived at Tegea; where their Arcadian allies soon after joined them.

Meanwhile they sent to Corinth, to the Boeotians, the Phocians, and Locrians, with orders to come up as quickly as possible to Mantinea.

These had but short notice; and it was not easy except all together, and after waiting for each other, to pass through the enemy's country, which lay right across and blocked up the line of communication.

Nevertheless they made what haste they could.

Meanwhile the Lacedaemonians with the Arcadian allies that had joined them, entered the territory of Mantinea, and encamping near the temple of Heracles began to plunder the country.