The Royal Navy had to protect dominions, colonies, trade routes, and Mediterranean access across the globe. Treaty limits prevented the ideal three-fleet structure, while Germany, Italy, and Japan could threaten different combinations of theaters. Planners therefore needed a reaction force and a sequence of procurement priorities rather than one fixed campaign fleet. This strategic burden helps explain why British logistics could not follow a single-ocean blueprint.
Chapter · 36:32-40:58
Global commitments shaped British planning
Britain's worldwide commitments forced planners to weigh Germany, Italy, and Japan rather than optimize for one ocean.