Not only was Armenia lost to him, but it had been made a centre from which his other provinces in this quarter might be attacked and harassed.  Tigranes, proud of his newly-won crown, and anxious to show himself worthy of it, made constant incursions into Adiabene, ravaging and harrying the fertile country far and wide.  Monobazus, unable to resist him in the field, was beginning to contemplate the transfer of his allegiance to Rome, as the only means of escaping from the evils of a perpetual border war.  Tiridates, discontented with the position whereto he found himself reduced, and angry that his brother had not given him more effective support, was loud in his complaints, and openly taxed Volagases with an inertness that bordered on cowardice.  Public opinion was inclined to accept and approve the charge; and in Parthia public opinion could not be safely contemned.  Volagases found it necessary to win back his subjects’ good-will by calling a council of the nobility, and making them a formal address:  “Parthians,” he said, “when I obtained the first place among you by my brothers ceding their claims, I endeavored to substitute for the old system of fraternal hatred and contention a new one of domestic affection and agreement; my brother Pacorus received Media from my hands at once; Tiridates, whom you see now before you, I inducted shortly afterwards into the sovereignty of Armenia, a dignity reckoned the third in the Parthian kingdom.  Thus I put my family matters on a peaceful and satisfactory footing.  But these arrangements are now disturbed by the Romans, who have never hitherto broken their treaties with us to their profit, and who will now find that they have done so to their ruin.  I will not deny that hitherto I have preferred to maintain my right to the territories, which have come to me from my ancestors, by fair dealing rather than by shedding of blood—­by negotiation rather than by arms; if, however, I have erred in this and have been weak to delay so long, I will now correct my fault by showing the more zeal.  You at any rate have lost nothing by my abstinence; your strength is intact, your glory undiminished; you have added, moreover, to your reputation for valor the credit of moderation—­a virtue which not even the highest among men can afford to despise, and which the Gods view with special favor.”  Having concluded his speech, he placed a diadem on the brow of Tiridates, proclaiming by this significant act his determination to restore him to the Armenian throne.  At the same time he ordered Monseses, a Parthian general, and Monobazus, the Adiabenian monarch, to take the field and enter Armenia, while he himself with the main strength of the empire advanced towards the Euphrates and threatened Syria with invasion.