 Under Arik-den-ili, he seems to have had the upper hand, because Adad-Nīrāri, who styles himself "King of the Universe", later recounts that "my father could not rectify the calamities inflicted by the army of the king of the Kassite land" in a contemporary Assyrian epic.He is mentioned in the "Synchronistic Chronicle" as having fought a battle with Adad-Nīrāri's forces at "Kār-Ištar of Ugarsallu".However, the Assyrians won a complete victory over the Babylonians in this battle, plundering their camp and seizing the royal standards, thereby acquiring territory from them and causing the Assyro-Babylonian boundary to be adjusted southward.