match for the large and highly trained Syracusan cavalry. Upon landing in Sicily, several cities immediately joined the Athenian cause. But instead of attacking, Nicias procrastinated and the campaigning season of 415 BC ended with Syracuse scarcely damaged. With winter approaching, the Athenians withdrew into their quarters and spent the winter gathering allies. The delay allowed Syracuse to request help from Sparta, who sent their general Gylippus to Sicily with reinforcements. Upon arriving, he raised a force from several Sicilian cities, and went to the relief of Syracuse. He took command of the Syracusan troops, and in a series of battles defeated the Athenian forces, and prevented them from invading the city. Nicias then sent word to Athens asking for reinforcements. Demosthenes was chosen and led another fleet to Sicily, joining his forces with those of Nicias. More battles ensued and again, the Syracusans and their allies defeated the Athenians. Demosthenes argued for a retreat to Athens, but Nicias at first refused. After additional setbacks, Nicias seemed to agree to a retreat until a bad omen, in the form of a lunar eclipse, delayed withdrawal. The delay was costly and forced the Athenians into a major sea battle in the Great Harbor of Syracuse. The Athenians were thoroughly defeated. Nicias and Demosthenes marched their remaining forces inland in search of friendly allies. The Syracusan cavalry rode them down mercilessly, eventually killing or enslaving all who were left of the mighty Athenian fleet. The Second War (413–404 BC) The Lacedaemonians were not content with simply sending aid to Sicily; they also resolved to take the war to the Athenians. On the advice of Alcibiades, they fortified Decelea, near Athens, and prevented the Athenians from making use of their land year round. The fortification of Decelea prevented overland supplies to Athens, and forced all supplies to be brought in by sea at greater expense. Perhaps worst of all, the nearby silver mines were totally disrupted, with as many as 20,000 Athenian slaves freed by the Spartan hoplites at Decelea. With the treasury and emergency reserve of 1,000 talents dwindling, the Athenians were forced to demand even more tribute from her subject allies, further increasing tensions and the threat of rebellion within the Empire. Corinth, Sparta, and others in the Peloponnesian League sent more reinforcements to Syracuse, to drive off the Athenians; but instead of withdrawing, the Athenians sent another hundred ships and