The Royal Navy built cruisers and Tribal-class destroyers for trade protection within the money and treaty limits available, but the eventual war imposed demands against multiple powers in separated theaters. Even the so-called European theater required coverage of the North Atlantic, North Sea, English Channel, Mediterranean, Adriatic, Mid-Atlantic, and South Atlantic. Japan's entry then added the Pacific to an already dispersed naval war. Concentrating around Britain would expose Commonwealth states, India, overseas resources, and the supply routes supporting the conflict. A separate Far Eastern fleet could not remove the need for forces at home. Naval commitments therefore could not be reduced to one European battlefront or solved by gathering the fleet in one place.
Chapter · 18:09-20:36
Why a three-power war overwhelmed cruiser planning
Treaty-limited preparations for one opponent could not cover simultaneous naval demands across the Atlantic, Mediterranean, and Pacific.