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.
With this arrangement they put an end to the war. After this the Corinthians sent a garrison of their own citizens to Ambracia, composed of three hundred heavy infantry, under the command of Xenocleides, son of Euthycles, who reached their destination after a difficult journey across the continent. Such was the history of the affair of Ambracia.
The same winter the Athenians in Sicily made a descent from their ships upon the territory of Himera, in concert with the Sicels, who had invaded its borders from the interior, and also sailed to the islands of Aeolus.
Upon their return to Rhegium they found the Athenian general, Pythodorus, son of Isolochus, come to supersede Laches in the command of the fleet.