In this war, of which very full contemporary accounts have come down to us, especially from Syrian sources, the Roman operations were conducted without the necessary energy, and lacked the direction of a single commander. Mesopotamia was fearfully ravaged. In 504 the Romans regained possession of Amida, after a long siege, by treaty, or more correctly speaking by purchase. After many battles and sieges peace was concluded in the August of 506, a peace which left everything _in statu quo ante_. The Romans once more undertook to pay an annual contribution towards the maintenance of the fortifications in the Caucasus. The Persians are said to have been induced to conclude peace by a war with the “Huns.” [Sidenote: [506-554 A.D.]] From the vague fashion in which the Greek authors of that time use the word “Huns” we cannot tell which of the tribes of northern barbarians is here meant. That Kavadh was at this time involved in serious difficulties at home or abroad may be inferred from the fact that he did not forcibly prevent a gross violation of the treaty of peace on the part of the emperor Anastasius, who converted the little village of Dara, close upon the frontier, into a great fortress intended to keep Nisibis in check. There was no further outbreak of hostilities during the life-time of Anastasius; but Justin I (July the 9th, 518-August the 1st, 527) appears to have intermitted the payment of the moneys stipulated to Persia. In return Kavadh incited the Arabs to make predatory raids into Roman territory, and Roman troops once more invaded and ravaged Armenia. In addition, violent quarrels arose about the Caucaso-Pontic districts, over which both sides claimed dominion. This time, however, Kavadh was little disposed towards war; perhaps he had realised that he could hardly hope to gain any permanent advantage. In the perpetual renewal of negotiations he had only one main object in view; he was anxious to procure the succession for Chosroes, the best beloved of his sons and certainly the most capable of ruling the empire, although he was not the eldest; and for this purpose he wished for a kind of guarantee from the emperor, which should take the form of an adoption of Chosroes by the latter. Negotiations concerning this and other matters were carried on at Nisibis. If matters went as they are represented to have gone, the Romans acted most perversely; in any case the negotiations had no other result than to put both parties out of humour. The chiefs of the Roman embassy escaped with no worse than degradation, the Persians were executed, though personally they deserved well of the king. These negotiations took place in 525 or 526; the war began again before the death of Justin. There was hard fighting on the frontier as early as the summer of 527, the Romans making a vain assault on Nisibis, and the Persians an equally fruitless attempt on Dara. EXPLOITS OF MUNDHIR