I think your question may be more pertinent to /r/HistoryWhatIf since it's about a hypothetical situation.

Also, you may be interested in some viewpoints on "history is written by the winners" that can be found through a subreddit search. I'm a fan of /u/Tiako's response here.

Just to be clear, you're essentially asking about less publicized, unsavory actions on the part of the Allied powers, correct?