Decolonization and Internal Security Policy in the British Empire: The Genealogy of Ideas and Transformation of Doctrine

A proper understanding of the evolution of the approaches and practices adopted by major powers to ensure internal security amid the transformation of the international order following the world wars, which accelerated the disintegration of global empires, requires situating these developments within the broader historical context of decolonization, which gained momentum between the end of the First World War and the mid-1960s. In this regard, the British Empire presents a particularly interesting case. Yet interpretations of the complex dynamics linking decolonization and counterinsurgency in the history of the British Empire remain dominated by somewhat simplified approaches and stereotypes. A systematic examination of the continuity in British military thinking regarding the role of the army in maintaining colonial order amid the gradual dismantling of the empire, both before and after 1945, may shed new light on these issues.The article demonstrates that a number of ideas central to the British officer corps concerning internal security, including in the imperial context, which are often associated with the ‘era of classical counterinsurgency’ (the 1950s–1960s), in fact date back to the 1920s and 1930s. The theoretical framework of the ‘imperial school’ of British military thought during this earlier period already encompassed such counterinsurgency principles and practices as the minimum use of force, interagency cooperation, unified command under states of emergency or martial law, an extensive intelligence network, and population control policies. At the same time, the study reveals the ambivalence of British military thinking at a pivotal moment in the empire’s history, reflecting both the continued intellectual inertia and a willingness to reassess colonial experience of maintaining internal security.