Interwar doctrine reflected the problems each navy was trying to solve rather than one universal model. Frederick Field's Royal Navy needed flexible local forces able to hold sea areas with whatever ships could be assembled before a main fleet arrived. William Sims's United States Navy needed officers trained to think across ship types while also building public and congressional support for sea power. In Japan, Mitsumasa Yonai and associated officers faced a service whose recent successes made institutional change difficult. The treaty environment affected all three, but their geography, political setting, reserve depth, and strategic ambitions mattered just as much.
Chapter · 56:02-1:07:10
Three navies began with three different problems
British imperial commitments, American force-building, and Japanese institutional confidence shaped different approaches to task-force doctrine.