State Archives of Assyria. Volume XXI
The first half of Assurbanipal's long reign (668-ca. 630 BCE) was a time of peace and great prosperity and political success for Assyria. But towards the middle of his reign a serious crisis broke out in Babylonia, unleashing a long, bitter and destructive conflict between Assyria, Elam and Babylonia, which was to shake the very foundations of the Empire. Less than a year after Assurbanipal had achieved a crushing victory over Elam, annexed the country to his realm and was at the apex of his political power, his brother Shamash-shumu-ukin, installed years before as a puppet king in Babylon, rebelled with the aid of Elam and the Chaldean and Aramean tribes of Babylonia. The revolt was crushed only five years later, leaving Babylon in ruins and sowing insidious rancor and hate among its citizens; the conflict with Elam went on for three more years.