The more I think about it, the more I think the problem must have to do with the split of your url. If there is a trailing slash then the $last_segment will be an empty string, thus never matching. You should check and trim that before splitting.
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.