After three decades of intense United States international involvement, a complex cornunity of semi-autonomous governmental agencies has evolved to plan, implement and operate Arnericats foreign affairs. The past ten years have seen several attempts to unify policymaking machinery. This thesis proposes a general model for Presidential foreign policymking through the Department of State. Historical aspects of the problem are briefly described, followed by an analysis of the current CASP and PARA approaches to foreign affairs planning, decisionmaking, resource management and review. The author then proposes a conceptual mdel based on essential characteristics of foreign affairs policyrraking, which are fashioned into a dynamic four-stage system for substantive management. The thesis concludes with consideration of the measurement of effectiveness as a basis for choosing policies.