History of the Peloponnesian War

Thucydides

Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.

but Demosthenes stayed behind to organize the expedition, meaning to start as soon as it was spring, and sent for troops to the allies, and meanwhile got together money, ships, and heavy infantry at home.

The Athenians also sent twenty vessels round Peloponnese to prevent any one crossing over to Sicily from Corinth or Peloponnese.