Britain needed enough ships for global trade protection, but improving foreign designs forced it to trade quantity for quality and seek repeated political approval. Germany's naval laws guaranteed a programme once enacted, yet reduced its ability to adjust. In this interpretation, Russia wanted conspicuous capital ships to recover a sense of naval power. Japan required any expensive large cruiser to combine Pacific commerce protection with a battle role. Its narrower industrial and personnel base made a single-purpose ship of that size difficult to justify.
Notable Point · 1:48:08-1:52:04
Why each navy wanted a different battlecruiser
Britain's quantity problem, Germany's fixed naval laws, Russia's prestige ambitions, and Japan's limited resources led to different battlecruiser requirements.