History of the Peloponnesian War

Perdiccas with Brasidas and his army, together with his own forces, marched presently against Arrhibaeus, the son of Bromerus, king of the Lyncesteans, a people of Macedonia, confining on Perdiccas his dominion, both for a quarrel they had against him and also as desiring to subdue him.

When he came with his army, and Brasidas with him, to the place where they were to have fallen in, Brasidas told him that he desired, before he made war, to draw Arrhibaeus by parley, if he could, to a league with the Lacedaemonians.

For Arrhibaeus had also made some proffer by a herald to commit the matter to Brasidas' arbitrement. And the Chalcidean ambassadors, being present, gave him likewise advice not to thrust himself into danger in favour of Perdiccas, to the end they might have him more prompt in their own affairs.