Melos

When, however, they did not surrender to them on the wasting of their territory, they sailed to Oropus, on the coast opposite Attica;

The same summer the Athenians despatched thirty ships to cruise about the Peloponnese, under the command of Demosthenes son of Alcisthenes, and Procles son of Theodorus, and sixty ships and two thousand heavy-armed against Melos, under the command of Nicias son of Niceratus.

So the Athenian ambassadors returned to their forces:

that is why our old men fight our battles, while our young men make speeches— they take Alcibiades as their model, Alcibiades who carries his villainy to such unheard-of lengths that, after recommending that the people of Melos be sold into slavery, he purchased a woman from among the prisoners and has since had a son by her, a child whose birth was more unnatural than that of Aegis—thus, since he …

For when we had arrived at Melos, and Thrasylochus perceived that we were likely to remain there, he begged me to sail with him to Troezen and by all means not to abandon him, mentioning his bodily infirmity and the multitude of his enemies, saying that without me he would not know how to manage his own affairs.

To speak, not in detail, but in summary, he made you masters of twenty-four cities and spent in doing so less than your fathers paid out in the siege of Melos.

and, in these speeches of theirs, they cast it in our teeth that we enslaved the Melians and destroyed the people of Scione.