I most remember his scene with Christopher Walken in True Romance about the invasion by Moors on Sicily. Hopper's monologue was preceded by an awesome speech from Walken on how he could spot a lie anywhere. That poignant scene was one of my favorite times for both of them in film.
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.