The article argues that global security should be seen as synonymous with human security, and that strategic studies should be located within that broader rubric. Mounting such an argument means meeting the charge of those who see the broader construction of strategic studies as vague and meaningless, and as detracting from the ability to make good policy. The article attempts, therefore, to map human security in as inclusive and systematic a way as possible. It attempts to show that the concept is neither vague nor meaningless, and is suitable, therefore, to be the basis for a comprehensive account of global security.How should global security be conceptualised? For example, should our focus remain restricted to the familiar politico-strategic (interstate/militarist/diplomatic) approaches to the subject? Or should it be broadened to incorporate more cooperative and collective, comprehensive and ultimately human concerns?