The Tigris and Euphrates are international rivers vital to the four countries through which they flow: Turkey, Syria, Iraq, and Iran. The population in the region has more than doubled in less than thirty years, and irrigated agriculture, hydroelectric power generation, industrialization, and urbanization have increased. All of these developments require more water, and the dependence of the riparian nations on the waters of the Tigris and Euphrates Rivers has become apparent, as has the need for comprehensive, basin-wide management of water resources. At present the riparians have shown some concern about the management of water in the two rivers, although no consensus exists as to the precise nature of the problem or what should be done to resolve it. This policy-oriented dissertation attempts to help frame the policy issues of managing the waters of the Tigris and Euphrates basin. It also seeks to provide an understanding of the policy process and to meet the intelligence needs of policy-makers with regard to the future management of these international waterways. Finally, it provides strategies for developing and implementing a cooperative water policy for this international basin.