This chapter contains sections titled: Introduction The Empire: Characteristics and Implications Ur III: How the Empire Came Into Being, Developed, Functioned, and Collapsed The Role of the Amorites The Old Babylonian Empire The Kassites: How the Empire Came Into Being, Developed, Functioned, and Collapsed Conclusion: 900 Years of Empire and Struggle for Supra - Regional Supremacy Guide to Further Reading