Editing Kavad I (section)

===Iberian war===
{{main|Iberian War}}
[[File:DaraFortifications.JPG|thumb|alt=Photograph of ruined fortifications at Dara | Ruins of the fortifications at [[Dara (Mesopotamia)|Dara]]]]
Hostility between the two powers erupted into conflict once again in 528, just a year after the new Byzantine emperor [[Justinian I]] ({{reign|527|565}}) had been crowned. This was supposedly the result of the Byzantines not acknowledging Khosrow as Kavad's heir. According to the Greek chronicler [[John Malalas]], military clashes first took place in [[Lazica]], which had been disputed between the two empires since 522. Not long after this the battles also spread down to Mesopotamia, where the Byzantines suffered a heavy defeat near the border. In 530, one of the [[Battle of Dara|famous open-field battles]] took place between the Byzantine and Sasanian troops at [[Dara (Mesopotamia)|Dara]].{{sfn|Schindel|2013a|pp=136–141}}

The Sasanian army led by [[Perozes]], Pityaxes and [[Baresmanas]] suffered a severe defeat. The battle did not, however, bring an end to the conflict.{{sfn|Schindel|2013a|pp=136–141}} The following year Kavad raised an army, which he sent under [[Azarethes]] to invade the Byzantine province of [[Commagene]].{{sfn|Martindale|1992|p=160}} When the Byzantine army under [[Belisarius]] approached, Azarethes and his men withdrew east, halting at [[Raqqa|Callinicum]].{{sfn|Martindale|1992|p=160}} In the [[Battle of Callinicum|ensuing battle]] the Byzantines suffered a heavy defeat, but Iranian losses were so great Kavad was displeased with Azarethes, and relieved him of his command.{{sfn|Martindale|1992|p=160}}<ref name="PROXVIII">Procopius, [http://www.gutenberg.org/files/16764/16764-h/16764-h.htm Book I.xviii].</ref> In 531, the Iranians [[Siege of Martyropolis (531)|besieged Martyropolis]]. During the siege, however, Kavad became ill and died on 13 September.<ref>Procopius [https://www.gutenberg.org/files/16764/16764-h/16764-h.htm Book I.xxi].</ref>{{sfn|Schindel|2013a|pp=136–141}} As a result, the siege was lifted and [[Perpetual Peace (532)|peace was made]] between Kavad's successor Khosrow I and Justinian.{{sfn|Schindel|2013a|pp=136–141}}