Global Security Governance demarcates the barriers and pathways to major power security cooperation and provides an empirical analysis of threat perception among the world’s major powers. Divided into three parts and using a common analytical framework for the changing security agenda in Canada, France, Germany, Italy, Japan, the Russian Federation, the United States, the United Kingdom and the EU, each chapter: Examines the national ‘exceptionalism’ that accounts for foreign and security policy idiosyncrasies Defines the range of threats preoccupying the government, foreign policy elites and public Assesses the institutional and instrumental preferences shaping national security policies Investigates the allocation of resources between the various categories of security expenditure Details the elements of the national security culture and its consequences for security cooperation. By combining a coherent theoretical framework with strong comparative case studies Global Security Governance contributes to the ongoing reconceptualization of security and definition of threat and provides a basis for reaching tentative conclusions about the prospects for global and regional security governance in the early twenty-first century. These features make it ideal reading for all students of security studies.