pows

My own design Cuckoo Cycle is another, that aims to be the most memory bound of all PoWs.

There were still an estimated 1.7 million people in the camps after WW2, many of them Soviet POWs.

Inmates have been making so-called 'zip' guns since they were first imprisoned, POWs have had similar sorts of experience.

After the war, instead of being repatriated, millions of German POWs were put into forced labor by the former Allies.

That's why there's so much research into memory-hard PoWs like Momentum, Dagger, and Cuckoo Cycle.

US POWs ended up picking up the tab for My Lai.

We live in a world where the government can drop a nuke on Japan, vaporizing tens of thousands of civilians (including some American POWs), and that's 100% legal.

Summary execution of POWs is a war crime.

We didn't do this to high-value Nazi POWs.

Some papers indicate post-traumatic growth occurs in ex-POWs.

Note: I'm mentioning this because you're scenario isn't quite as hypothetical as one might hope - for neither those bombed nor for the abused POWs.

Germany and the US don't sweep under the carpet the Atom bomb or the concentration camps, and likewise Japanese people should be taught about Nanking, the POWs, Unit 731 etc.

As an example, one practice Baghy writes of is a kind of "duel" that the POWs would sometimes engage in between each other.

If you're inclined to go down that path: the Japanese treated US POWs terribly, and the US still dropped two nukes as a weapons test (there was credible intelligence Japan was in the process of surrendering because of the "regular" fire-bombing campaigns - but dropping nukes was seen as a great deterrent against Sovjet.