The pages of Western Asian history during 1370-1300 BC have had little to tell about Assyria or Babylonia since the reigns of Shamshi-Adad I and of his son Ishme-Dagan in the former, and since the end of Hammurabi's last successor in the latter. The moment of destiny for Assyria in its relation with the Human kingdoms which had long oppressed her was undoubtedly the murder of Tushratta, king of Mitanni, by one of his sons. In the south, Ashur-uballit's relations with Babylonia were intimate and dramatic, and are fairly well known. An Assyrian poem, written in a spirit of undisguised chauvinism, presents an epical description of a war between Assyria and Babylonia. Assyria under Enlil-nīrāri was successful in the war; he was succeeded by his son Arik-dēn-ili, whose reign lasted for twelve years. The efforts of Arik-dēn-ili appear more as the usual offensive-defensive operations against the highlands than as moves in a conflict with Kassite Babylonia.