History of the Peloponnesian War

Upon receiving what he asked for, he started from a point out of sight in order not to be seen by the enemy, and creeping on wherever the precipices of the island permitted, and where the Lacedaemonians, trusting to the strength of the ground, kept no guard, succeeded after the greatest difficulty in getting round without their seeing him, and suddenly appeared on the high grounding their rear, to the dismay of the surprised enemy and the still greater joy of his expectant friends.

The Lacedaemonians thus placed between two fires, and in the same dilemma, to compare small things with great, as at Thermopylae, where the defenders were cut off through the Persians getting round by the path, being now attacked in front and behind, began to give way, and overcome by the odds against them and exhausted from want of food, retreated.The Athenians were already masters of the approaches

when Cleon and Demosthenes perceiving that, if the enemy gave way a single step further, they would be destroyed by their soldiery, put a stop to the battle and held their men back; wishing to take the Lacedaemonians alive to Athens, and hoping that their stubbornness might relax on hearing the offer of terms, and that they might surrender and yield to the present overwhelming danger.