Japanese schoolgirls training with a machinegun for the anticipated American invasion of Japan, WW2, 1945

https://media.kbin.social/media/0a/4c/0a4c203b8bf88582a4960b75a4a55d7cfd893151b83ee146a2c4024f3d31be6c.jpg

In 9th grade US history we held a mock trial about the nuclear strikes on Hiroshima and Nagasaki. I was assigned the role of Harry Truman, one of the defendants. I did a ton of research about the plans for invasion of Japan on both sides, and it was terrifying. The Japanese were teaching children to fight with garden tools, and US casualty estimates were over a million soldiers.

However, in the end I came to the conclusion that the nuclear strikes weren't necessary, and I wouldn't have ordered them simply because a the war was already incredibly one-sided, and an invasion wouldn't have been necessary in the first place since Japan was already on its last legs.

The class ended up convicting me of a war crime, which was nice.

However, in the end I came to the conclusion that the nuclear strikes weren't necessary, and I wouldn't have ordered them simply because a the war was already incredibly one-sided, and an invasion wouldn't have been necessary in the first place since Japan was already on its last legs.

Then how does the war end, in your scenario?

If I'd have been president I'd continue the (not very) strategic bombing and implement a blockade. Japan has very few natural resources and relies a lot on imports, so this would have hamstrung their military effectiveness. It would have taken a bit longer but based on my half-remembered research from almost 30 years ago it would have worked without an invasion or nukes.

IMHO the nukes were signals to Stalin that he better stop at Berlin.

That would’ve worked, but “working” would involve a large portion of the civilian population of Japan starving to death.

The use of the nukes was dual purpose, and yes, one of the purposes was to show to the Soviets that we not only had nukes but were willing to use them.

The other purpose was to demonstrate to Japan that continuing the war was hopeless, regardless of the number of schoolgirls with machine guns they had. It was to show that we didn’t need to invade to flatten their cities. One plane, one bomb, one parking lot. Perhaps luckily for all involved they did not know we did not have the capability readily available to make any more atomic bombs just yet.

One minor point: We had already flattened their cities with firebombs, so they knew we could do it without invading.