u/MediumPackage1361

I had a Vietnamese friend that told me a story about the war, and he said comparing to other country during the war like the US or other nation, what he said was that the Korean are the most brutal and cruel. Now I know alot of things about the Vietnam war, but can somebody tell what the Korean did during the War? I actually never knew about Koreans being drafted to Vietnam. So please tell what they did towards the people.