Obviously the immediate question was the state of affairs in the East. In the spring of 575 Tiberius sent Trajan, quaestor and physician, with the former envoy Zacharias to obtain a cessation of hostilities for three years both in the East and Armenia; if that was not possible, then in the East excluding Armenia. Persia however insisted that no truce could be granted for any less period than five years, and the ambassadors therefore consented, subject to the approval of the Emperor, to accept a truce of five years in the East alone, Rome undertaking to pay annually 30,000 gold nomismata. These terms Tiberius rejected: he wanted a truce for two years if possible, but in no event would he accept an agreement which would tie his hands for more than three years: by that time he hoped to be able successfully to withstand Persia in the field. At last Chosroes agreed to a three years' treaty which was only to affect the East and was not to include Armenia. Meanwhile, before the result of the negotiations was known, Justinian, son of the murdered Justin, was appointed general of the East. Early in the summer, however, Chosroes with unexpected energy marched north and invaded Armenia; Persarmenia returned to its allegiance, and by way of the canton of Bagrevand he advanced into the Roman province and encamped before Theodosiopolis. This city, the key of Persarmenia and Iberia, he resolved to capture, and thence to proceed to Caesarea, the metropolis of Cappadocia. The siege, however, was soon abandoned, and near Sebaste the Persians met the Roman army under Justinian, who had now assumed command in Armenia. Personal jealousies paralysed the action of the imperial troops, and the enemy was thus able to capture and burn Melitene. Then the fortune of war turned. Chosroes was forced to flee across the Euphrates and, with the Romans in hot pursuit, only escaped with great loss over the mountains of Karcha. Justinian followed up this advantage by spending the winter on Persian soil. His troops pillaged and plundered unchecked, and in the spring of 576 he took up his position on the frontier.
The shame of the flight from Melitene was a severe shock to Persian pride, and there seemed every prospect that now at last peace would be concluded. At Athraelon, near Dara, Mebodes met Rome's envoys John and Peter, patricians and senators, together with Zacharias and Theodore, count of the treasury. During the negotiations however Tamchosro defeated Justinian in Armenia (576). Elated by this victory, the Persians withdrew the concessions which they had already made. Still all through the years 576-577 the plenipotentiaries discussed terms; two points stood in the way of a final settlement: Persia claimed the right
Tiberius II and does not εἰς ὄνομα ἴδιον = his position was now legalised, and as Caesar he could raise troops in his own name? Finlay sees in the passage the creation of a troop of Buccellarii.
