As far as Japan is concerned, the theories about how they would have fought for every house, etc. are false.
One of the most astonishing facts about the Pacific War was how few Japanese soldiers ever surrendered to the Allies (before the war officially ended). The Japanese sense of honor demanded that they fight till the end and never surrender. I no longer have the exact number, but IIRC, the total number of captives was less than a few thousands. Compare that with the number of German, Italian, Croat, Romanian, etc., prisoners taken.
This was so extreme that on Saipan, Japanese troops murdered ethnic Japanese civilians by forcing them to jump off cliffs to their deaths.
The Japanese were trying to negotiate a surrender even before the first atomic bomb fell.
One minority faction was. Bear in mind that, even after the first fission bomb fell on Hiroshima, they still didn't surrender. It took another bomb to force them to quit.
Also, even before Hiroshima, the Japanese has already trained millions of civilians to fight against the Allies. Many were expected to use nothing more than bamboo spears. BTW, as I recall, the Japanese government expected ten million Japanese civilians to die fighting the invasion. The US expected to take up to one million casualties.
The US expected to take up to one million casualties.
I'm not sure this was true. The US might have expected to take such large numbers of casualties IF they insisted on invading very quickly for purely political reasons. But given a bit more time, there need not be so many casualties at all. Japan was literally starving. Everyone was on severely reduced food rations, including soldiers. Within a year or so, no one would have the strength to resist invasion anyway. In addition, the blockade destroyed Japan's ability to produce armaments, so the only way to resist invasion would have been wooden spears and hand to hand combat.
A man who's subsisted on 800 calories a day for the past 2 months won't put up much of a fight. Wait a few months more and he'll be dead, at which point he really won't put up much of a fight.
But don't forget that America was having a hard time funding the war at that point. They had to end it quickly or they would have run out of money and given Japan time to rebuild their war machine.
As Neal Stephenson says in Cryptonomicon, the only Japanese soldiers who understood that banzai charges didn't work had already been killed in banzai charges.
My dad fought in WWII, at Okinawa. His unit had a 120% casualty rate or so--the entire unit, plus 20% of the replacements. According to him, one of the reasons we had so few Japanese prisoners is because the Marines weren't especially interested in taking prisoners. The intelligence officers were quite displeased at that.
One of the most astonishing facts about the Pacific War was how few Japanese soldiers ever surrendered to the Allies (before the war officially ended). The Japanese sense of honor demanded that they fight till the end and never surrender. I no longer have the exact number, but IIRC, the total number of captives was less than a few thousands. Compare that with the number of German, Italian, Croat, Romanian, etc., prisoners taken.
This was so extreme that on Saipan, Japanese troops murdered ethnic Japanese civilians by forcing them to jump off cliffs to their deaths.
The Japanese were trying to negotiate a surrender even before the first atomic bomb fell.
One minority faction was. Bear in mind that, even after the first fission bomb fell on Hiroshima, they still didn't surrender. It took another bomb to force them to quit.
Also, even before Hiroshima, the Japanese has already trained millions of civilians to fight against the Allies. Many were expected to use nothing more than bamboo spears. BTW, as I recall, the Japanese government expected ten million Japanese civilians to die fighting the invasion. The US expected to take up to one million casualties.