Which Imperial Japanese Navy capital ship made Britain feel it needed to build a direct response?
Short answerNot really until Yamato; Nagato and the British N3 studies were parts of a broader, iterative international technology race.
NotesNo earlier Japanese class prompted a simple one-for-one British answer. Nagato formed part of a continuing cycle in which navies watched and responded to one another's technical development. The N3 and related British studies belong to that wider interaction rather than to a single reactive design. Yamato created a clearly different response problem.