The benefit of Haskell is the powerful abstractions it allows you to use. You're not thinking in terms of ones and zeros and addresses and registers but computations and type properties and continuations.
I have never mixed both languages but your approach feels a little upside down to me. Haskell is more apt at high-level operations while C++ can be optimized and can be most beneficial for tight loops and other performance critical code.
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.