What exactly are you trying to achieve. If you load two different rule files using the knowledge builder all the rules in both files will be available. There's no need to import rules from a different DRL file because when you compile the rules are all in the same binary package.Cheers.
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.