Cruisers in Far Eastern deterrence plans

Leander and Amphion-class cruisers were intended for Australia, the China Station, and the Indian Ocean as part of a deterrent posture toward Japan. Their commerce-war role threatened to force Japan to divert ships into trade defense instead of concentrating every available unit for offensive operations. In the pre-war concept, battleships and carriers would secure the main base and cover a task group while longer-ranged cruisers hunted more freely. The sequence of war against Germany and Italy pulled ships toward the Atlantic and Mediterranean before Japan entered the conflict. Combat losses, refits, and ordinary operational wear then made the planned Far Eastern distribution impossible. Deterrence here meant forcing an opponent to protect its vulnerabilities rather than matching its battle fleet ship for ship.