The final years of the war 415. The Sicilian expedition departs. Athens sends reinforcements under Demosthemes. Before Demosthenes arrives, the Athenians under Nicias suffer a naval defeat at the hands of Syracuse.
Battles follow on land.
The Syracusans close the harbor. The Sicilian expedition is destroyed. The Persians in western Asia Minor begin to meddle in Ionia once again. Athens uses the funds stored on the Acropolis to build a new fleet. Alcibiades helps to unite the Spartans with Tissaphernes, a Persian satrap.