Why a global empire would centralize fleets and air power

If the British Empire conquered the other great powers, which captured ships would its members receive?

None as independent fleets; a global maritime empire would centralize naval and air power, control key ports and trade routes, and leave most local administration in place.

In the proposed global empire, Britain would keep captured fleets under central control. Giving subordinate powers independent navies would surrender part of its control over trade and communications. Air forces would also remain centralized, while local armies and perhaps helicopters could handle internal security. Control of a few strategic ports would make worldwide direct administration unnecessary and uneconomical. Local governments would continue running their territories under restrictions on trade and warfare.