Fortunately, the August Atomic peace blocked the Japanese plan 夜桜作戦 (Operation Cherry Blossoms at Night) to bomb California in next month w/ bubonic plague, developed & tested @ Unit 731, using I-400 subs & float planes they carried. That saved not only the lives of civilians in California who otherwise would have died horribly from a disease we had no cure for, but the millions of Allied & Japanese troops, + millions of civilians.

@503bartley we will never know for sure, but counterfactuals are always interesting.