The History of the Grecian War (1.30.2-1.30.4)

After this, when the Corinthians with their vanquished fleet were gone home to Corinth, the Corcyraeans, masters now of the whole sea in those parts, went first and wasted the territory of Leucas, a Corinthian colony, and then sailed to Cyllene, which is the arsenal of the Eleans, and burnt it because they had both with money and shipping given aid to the Corinthians.

And they were masters of those seas and infested the confederates of Corinth for the most part of that year, till such time as in the beginning of the summer following the Corinthians sent a fleet and soldiers unto Actium, the which, for the more safe keeping of Leucas and of other cities their friends, encamped about Chimerium in Thesprotis; and the Corcyraeans, both with their fleet and land soldiers, lay over against them in Leucimna.

But neither part stirred against the other; but after they had lain quietly opposite all the summer, they retired in winter both the one side and the other to their cities.