Navies moved toward fast battleships for different reasons. Britain wanted a standardized design able to redeploy quickly across an empire, simplifying operations and logistics across distant stations. Japan treated the fast battleship as a way for too few ships to cover both battleship and battlecruiser functions, even if neither role was fulfilled perfectly. Italy faced a related need to shift scarce heavy units between the Adriatic and the wider Mediterranean. The United States remained committed to a solid battle line at this stage. Germany moved more reluctantly because its battlecruisers were still conceived partly as second-class battleships, so similar hull outcomes could emerge from different doctrines.
Notable Point · 12:49-14:42
Why navies converged on fast battleships differently
British, Japanese, Italian, and German routes toward the fast battleship answered different problems of geography and fleet strength, while the United States still preferred a solid battle line.