History of the Peloponnesian War

In the mean time the Syracusans and their allies in Sicily, having taken to join the ships on guard at Messana the other squadron which they were preparing, carried on the war from that place.

They were especially urged on to this by the Locrians, out of hatred for the people of Rhegium, whose territory they had themselves also invaded with all their forces.

And they wished to try the result of a sea-fight, seeing that the Athenian ships stationed at Messana were but few; while by the greater part of them, including those that were to come thither, they heard that the island was being blockaded.

For if they gained the advantage by sea, they hoped that by blockading Rhegium both with their land-forces and their ships they would easily reduce it, and then their success would be secured; for as the promontory of Rhegium in Italy, and that of Messana in Sicily, lay close together, the Athenians would not be able to cruise against them, and command the strait.

This strait is formed by the sea between Rhegium and Messana, where Sicily is at the least distance from the continent; and is the Charybdis, so called, through which Ulysses is said to have sailed. And as the sea falls into it through a narrow passage from two great mains, the Tuscan and Sicilian, flowing at the same time with a strong current, it has naturally been considered dangerous.