Even in countries that may not seem to have anything to do with World War II, there were deaths across the board (captures are only partial).
Perhaps because it was a colony of a major participating country, there were countries that participated in the war together.
South American countries that don’t seem to matter at all. Brazil’s death toll is high
South Korea’s death toll is between that of Italy and France
Of the 85 million total deaths
Korean deaths 533,000
https://www.youtube.com/embed/qa0DnCijMdY