Korea was a hell of a war... 98% of the soldiers that returned, never talked about what went on, and those that did, told of a horror that couldn't be absorbed by the human mind. If you ask a Korean War vet about it (you can still find a few alive) they probably won't talk much about it...
The cold was really bad, but it stopped the piles of bodies from decomposing, and they stacked up like cord wood. I can't imagine what those vets went through.
Charlie