Ashur-uballit I "Ended the Mitanni Empire"

Ashur-uballit I (1365–1330 BC) went further, defeating Shuttarna III and bringing an end to the Mitanni empire, the Assyrian king then annexing its territories in Anatolia and the Levant, turning Assyria once more into a major empire. The ambitious Assyrian king went further still, attacking and conquering Babylonia, and imposing a puppet ruler loyal to himself upon its throne. Assyria then annexed hitherto Babylonian territory in central Mesopotamia.