This new collection of essays, from leading British and Canadian scholars, presents an excellent insight into the strategic thinking of the British Empire. It defines the main areas of the strategic decision-making process that was known as ‘Imperial Defence’. The theme is one of imperial defence and defence of empire, so chapters will be historiographical in nature, discussing the major features of each key component of imperial defence, areas of agreement and disagreement in the existing literature on critical interpretations, introducing key individuals and positions and commenting on the appropriateness of existing studies, as well as identifying a raft of new directions for future research.