Speaking as someone who writes historical fiction: you probably won't see much about either conflict in the fiction that's published in the United States (if that's what you're thinking of) because these episodes in history aren't controversial anymore. In most cases, they're simply forgotten or ignored.
To be controversial, you'd a) have to write a brilliant novel that would get a lot of attention, and b) frame it in such a way that someone nowadays might feel their political position had been attacked or their toes been stepped on. Rape and torture, I regret to tell you, isn't going to shock anybody unless you happen to be writing for the most conservative part of the Christian fiction market.
I suggest you do your research and get a feel for which potential story interests
you. A good, interesting story can be found almost anywhere. Honestly, it's possible to write an interesting dialogue between two stalks of celery sitting on the kitchen cutting board.
Good luck to you, and I hope you find a story you'll enjoy writing.