You'd probably use the Sanskrit word for 'Karma' as it is its own concept, however there was a saying "Filleann an feall ar an bhfeallaire," roughly, "The treachery returns to the betrayer.
After some more research, the literal translation of "What goes around comes around," which is more-or-less Karma's angle, is "NĂ raibh feall riamh nach fillfeadh" in Irish Gaelic, according to Answers.com.
However there is different Gaelics, i.e. Scottish Gaelic, Irish Gaelic, and so-on.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.