Singapore, imperial mobilization, and the shock of France's fall

The British approach was to hold Singapore and build operations from troops, industry, and infrastructure across Britain and the wider empire. In this assessment, versions of the plan could have worked against the Japanese threats envisaged in the 1920s and 1930s, but they could not meet European and Asian demands together. France's unexpected fall left the British government reacting for roughly eighteen months and removed a central assumption behind its planning. The earlier decision to pause carrier and capital-ship construction, based on the belief that Germany and Italy could be handled without them, then proved costly. Canadian industry and forces from India, Australia, South Africa, New Zealand, Malaya, the Caribbean, and elsewhere show why describing Britain as literally alone obscures the plan's imperial foundation.