History of the Peloponnesian War

While both parties were thus engaged, and were as intent upon preparing for the war as they had been at the outset, the Euboeans first of all sent envoys during this winter to Agis to treat of their revolting from Athens. Agis accepted their proposals, and sent for Alcamenes, son of Sthenelaidas, and Melanthus from Lacedaemon, to take the command in Euboea. These accordingly arrived with some three hundred Neodamodes, and Agis began to arrange for their crossing over.

But in the meanwhile arrived some Lesbians, who also wished to revolt; and these being supported by the Boeotians, Agis was persuaded to defer acting in the matter of Euboea, and made arrangements for the revolt of the Lesbians, giving them Alcamenes, who was to have sailed to Euboea, as governor, and himself promising them ten ships, and the Boeotians the same number.

All this was done without instructions from home, as Agis while at Decelea with the army that he commanded had power to send troops to whatever quarter he pleased, and to levy men and money. During this period, one might say, the allies obeyed him much more than they did the Lacedaemonians in the city, as the force he had with him made him feared at once wherever he went.