What changes if the US Navy develops British-level night carrier doctrine by 1941?
Short answerIt could transform battles such as Midway and trigger earlier British and Japanese investment in night fighters and carrier defense.
NotesThe immediate operational effect would be the option to convert major carrier actions such as Midway into night strikes. Achieving British-level proficiency by 1941, however, implies an American program beginning early enough in the 1930s to influence aircraft and doctrine before the war. British observers would strengthen fleet night defense and could pursue a dedicated fighter alongside contemporary multirole naval aircraft. Japanese planners would also respond once both Anglo-American navies demonstrated sustained interest in night carrier warfare.