Japan chooses commerce control over independent raiding

The Six-Six Fleet declared that Japan expected recognition as a serious naval power. French and American concepts centered on independent commerce-raiding cruisers, while Japan drew more heavily from Britain's idea of commerce control. The aim was to deny an opponent's trade and protect Japan's own shipping through a fleet able to command the relevant sea lanes. Asama-type cruisers could still perform convoy and trade-defense work as part of a concentrated force rather than as isolated raiders. Their success as a powerful second line helps explain why a commerce role cannot be inferred from hull classification alone.