Book 3
8.5
When Agis led back his army, he left behind Lysistratus, a Spartan, with a portion of his forces, along with the Elean refugees, that they might help the Lepreans to ravage the land. In the third year of the war398 B.C. the Lacedaemonians under Agis again prepared to invade the territory of Elis. So Thrasydaeus and the Eleans, reduced to dire extremities, agreed to forgo their supremacy over their neighbors, to dismantle the fortifications of their city, and to allow the Lacedaemonians to sacrifice to the god and to compete in the games at Olympia.
8.6
Agis used also to make continual incursions into Attica, and established the fortified post at Decelea to annoy the Athenians.413 B.C. When the Athenian navy was destroyed at Aegospotami,405 B.C. Lysander, the son of Aristocritus, and Agis violated the oaths which the Lacedaemonians as a state had sworn by the gods to the Athenians, and it was on their own initiative, and without the approval of the Spartan state, that they put before their allies the proposal to destroy Athens root and branch.