History of the Peloponnesian War

Indeed Arrhibaeus sent a herald to make some advances, being willing to refer the matter to Brasidas as an arbitrator between them: and the Chalcidian envoys who were with him, advised him not to remove the apprehensions of Perdiccas, that they might be able to command his more hearty assistance in their own affairs also.

Besides, the envoys from Perdiccas had made at Lacedaemon a declaration to this effect, that he would bring many places around him into alliance with them; so that Brasidas, on the strength of this, thought himself entitled to arrange the affairs of Arrhibaeus in [*]( Or, κοινῇ μᾶλλον may signify on more public grounds, i. e. on the strength of what Perdiccas had held out at Sparta as a national advantage that would result from their sending troops to co-operate with him. Poppo and Bloomfield think it signifies more impartially. ) common with Perdiccas, rather than leave them to him alone.

But Perdiccas said that he had not taken Brasidas as an arbitrator in their disputes, but rather to destroy the enemies he should point out to him; and, that he would act unjustly. if, while he supported half his army, he should hold a conference with Arrhibaeus.