The court of Ctesiphon would thus have had reason enough for going to war with Rome; it seemed the prelude to its doing so, when in 690 it declared war on Armenia on account of the question of the frontier.

But Phraates had not the courage to come to an open rupture with the Romans at a time when the dreaded general with his strong army was on the borders of the Parthian empire.

When Pompeius sent commissioners to settle amicably the dispute between Parthia and Armenia, Phraates yielded to the Roman mediation forced upon him and acquiesced in their award, which assigned to the Armenians Corduene and northern Mesopotamia.

Soon afterwards his daughter with her son and her husband adorned the triumph of the Roman general.

Even the Parthians trembled before the superior power of Rome; and, if they had not, like the inhabitants of Pontus and Armenia, succumbed to the Roman arms, the reason seemed only to be that they had not ventured to stand the conflict.
Organization of the Provinces There still devolved on the general the duty of regulating the internal relations of the newly-acquired provinces and of removing as far as possible the traces of a thirteen years' desolating war.
The work of organization begun in Asia Minor by Lucullus and the commission associated with him, and in Crete by Metellus, received its final conclusion from Pompeius.