Alyattes child Aryenis
War against the Medes
Alyattes's eastern conquests extended the Lydian Empire till the Upper Euphrates according to the scholar Igor Diakonoff, who identified Alyattes with the Biblical Gog. This expansionism brought the Lydian Empire in conflict in the 590s BCE with the Medes, an Iranian people who had expelled the majority of the Scythians from Western Asia after participating in the destruction of the Neo-Assyrian Empire. After the majority of the Scythians were expelled by the Medes during that decade out of Western Asia and into the Pontic Steppe, a war broke out between the Median Empire and another group of Scythians, probably members of a splinter group who had formed a kingdom in what is now Azerbaijan. These Scythians left Median-ruled Transcaucasia and fled to Sardis, because the Lydians had been allied to the Scythians. After Alyattes refused to accede to the demands of the Median king Cyaxares that these Scythian refugees be handed to him, a war broke out between the Median and Lydian Empires in 590 BCE which was waged in eastern Anatolia beyond Pteria. This war lasted five years, until a solar eclipse occurred in 585 BCE during a battle (hence called the Battle of the Eclipse) opposing the Lydian and Median armies, which both sides interpreted as an omen to end the war. The Babylonian king Nebuchadnezzar II and the king Syennesis of Cilicia acted as mediators in the ensuing peace treaty, which was sealed by the marriage of Cyaxares's son Astyages with Alyattes's daughter Aryenis, and the possible wedding of a daughter of Cyaxares with either Alyattes or with his son Croesus. The border between the Lydian and Median empires was fixed at a yet undetermined location in eastern Anatolia; the Graeco-Roman historians' traditional account of the Halys River as having been set as the border between the two kingdoms appears to have been a retroactive narrative construction based on symbolic role assigned by Greeks to the Halys as the separation between Lower Asia and Upper Asia as well as on the Halys being a later provincial border within the Achaemenid Empire.
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