History of the Peloponnesian War

Next they enslaved Scyros the island in the Aegean, containing a Dolopian population, and colonized it themselves.

This was followed by a war against Carystus, in which the rest of Euboea remained neutral, and which was ended by surrender on conditions.

After this Naxos left the confederacy, and a war ensued, and she had to return after a siege; this was the first instance of the engagement being broken by the subjugation of an allied city, a precedent which was followed by that of the rest in the order which circumstances prescribed.