American and Japanese carriers without compulsory conversions

G3s and Amagis could prompt American reconsideration of the lightly protected Lexington battlecruisers. Their intended scouting and trade-warfare roles help explain the light protection, but heavier foreign rivals could make that compromise less acceptable. Some hulls might become carriers, while new carrier designs could use the same general hull form. Tosa and Amagi ships in Japan could be completed in their intended capital-ship roles. Kaga would then lack its historical route into carrier service, and Japan would need another design or conversion source. The resulting carriers could reflect naval requirements more closely, with construction choices still uncertain.