How should arms control theory and policy be altered to improve the prospects for co-operation in the post-Cold War world? The essays in this volume explore change and continuity in security threats, arms control options, the domestic policy-making process and the multilateral negotiating environment. The authors offer a range of perspectives from the academic and policy-making worlds. Some argue that rising interdependence created both the need and the opportunity for a radical reorientation of arms control efforts, while others contend that increasing complexity in arms control problems still constrains what can be negotiated and ratified.