History of the Peloponnesian War

But Agis, thinking that the people would not in this way immediately surrender their ancient liberties, and that if they saw a large army of Lacedaemonians they would not remain quiet, and also not being quite sure at present that the Athenians were no longer in a state of disturbance, did not make a conciliatory response to those who had come as envoys from the Four Hundred. He sent instead for a large additional force from the Peloponnesus, and not long afterwards himself took the garrison at Deceleia together with the new arrivals and came down to the very walls of Athens, hoping either that the Athenians, being now in confusion, would more readily submit on terms pleasing to the Lacedaemonians, or else that, in consequence of the turmoil that would in all probability prevail both inside and outside the city, he would not fail at the first assault to capture the long walls at any rate owing to the absence of troops to defend them.

But when he came close and the Athenians made no move whatever from within the walls, but sending out the cavalry and a portion of the hoplites, light-armed troops and bowmen, shot down some of his men in consequence of their approaching too near and got possession of a number of arms and dead bodies, he at length recognized his mistake and led back his army.

He himself, then, and his own troops remained at their post in Deceleia, but the reinforcements that had come he sent back home after they had remained a few days in Attica. After this the Four Hundred, notwithstanding their earlier experience, kept sending envoys to Agis, and as he now received them more readily and advised them to do so, they sent envoys also to Lacedaemon to negotiate an agreement, since they were now desirous of making peace.