Comment by GiorgioG

It’s easy to question the decision when you’re not responsible for making it. When you’re not responsible for your soldiers’ lives it’s easy to talk about ethics. Invading Japan would have killed tens of thousands of US soldiers, easily. When it comes right down to it, you’ll always prefer the option that’s spares more of your countrymen than the enemy (who started the war against the US.) That’s perfectly ethical as far as I’m concerned - as ethical as anything can be in war.