How were Assyrians different from Babylonians

The Assyrians and the Babylonians only had one difference, the Assyrians were in North Mesopotamia and the Babylonians were in South Mesopotamia. Other than that, they are exactly the same. The Assyrians and Babylonians both descended from the Sumerians and Akkadians before them. They carried on their traditions of the cuneiform (first writing system developed by the Sumerians), astronomy art, military strategies and technological achievements.The Assyrians and Babylonians had always had the same language, the same laws, the same mentalities, and the same religion (polytheistic). The Assyrian Empire and the Babylonian Empire were two sister kingdoms.