[1] After the winter season, Marcian gathered together his forces again and set out from Dara meeting with the barbarians in front of the city of Nisibis led by Varaman, who was in command of the companies stationed them.
"[2] "While they were encamped near the city, King Chosroës set out from Babylon with an army of Medians crossing the Tigris River and passing over empty land, as the Roman had not heard of the king‘s movements, and came upon the Persian fortress of Amvaron (it is five days distant from the city of Circesion), where he dispatched Adaarman, as the general was called, to cross the Euphrates River there and plunder Roman territory with thousands of his own Medians and nomadic barbarians.
As a result of these actions, the emperor Justin dispatched Acacius (the Romans are accustomed to add the name of Archelaus) removing Marcian, who was still besieging Nisibis, from office because he had doubts about his loyalty, as the city had not yet been taken control of.
And as those inside were in alarm, so those outside were making their preparations to assault the city and plunder it; but just as they were ready to storm it, a violent tempered man arrived, named Acacius Archelaus, sent for no just reason by king Justin to deprive Marcian of his command, and cut his girdle and send him away from the cast.
"[4] And immediately that he came, he [Acacius] showed his orders, just at the time when Marcian and his army were fighting against Nisibis, and expecting to assault it the next day, and win the city; and all were in astonishment, and their hands were weakened.
But he [Acacius] was angry with him [Marcianus], and insulted him, and in hot wrath laid hands upon him in the presence of all his officers, and pulled him about, and threw him down, and cut his girdle, scoffing at him, and even, as was said, he struck him on the cheek.
" [4] Evagrius Scholasticus gives his own take on the matter:[1] placing the blame on Justin himself, on Marcianus and on Acacius : "The emperor sends out his kinsman Marcian, as commander of the forces of the East, without, however, sufficiently supplying him with troops, or the other material of war.
After gaining the advantage in some skirmishes near Nisibis with the Persians, who were themselves not yet completely prepared, he sits down before that city, though the enemy did not think it necessary to close the gates, and insolently jeered the Roman troops.
Of these operations the Romans were for a long time ignorant, so far that Justin, relying on a rumour to the effect that Chosroes was either dead or approaching his last breath, was indignant at the tardiness of the siege of Nisibis, and sent persons for the purpose of stimulating the efforts of Marcian, and bringing to him the keys of the gates as quickly as possible.
Information, however, that the siege was making no progress, but that the commander was bringing great discredit upon himself by attempting impossibilities in the case of so important a city with so contemptible a force, is conveyed in the first instance to Gregory, bishop of Theopolis.