Immediately after the affair at Plataea, Lacedaemon sent round orders to the cities in Peloponnese and the rest of her confederacy to prepare troops and the provisions requisite for a foreign campaign, in order to invade Attica. The several states were ready at the time appointed and assembled at the Isthmus; the contingent of each city being two-thirds of its whole force. After the whole army had mustered, the Lacedaemonian king, Archidamus, the leader of the expedition, called together the generals of all the states and the principal persons and officers, and exhorted them as follows:—