This report, informed by a workshop held in Washington in March 1994, briefly outlines a case for the fuller incorporation of preventive diplomacy into US national security planning and budgeting. In so doing, it explores some opportunities for pursuing this objective, and proposes some near-term actions to promote the common security of individuals, ethnic groups and nations around the globe. Preventive diplomacy is a relatively new and fluid concept that encompasses a variety of measures. In this report, the focus is on measures for conflict prevention and conflict resolution. The report suggests a working definition of preventive diplomacy, discussing its present role and ways to promote it in the future. Thus the report seeks to address the question: How can the evolving discipline of preventive diplomacy be more fully incorporated into national security planning and budgeting?