You're sorting by n. Title, but then your first condition is looking for an n. Nid greater than/lower than $nid.
This makes no sense, and results in a semi-random selection. I suggest when sorting by title you change the condition to something n. Title $node->title, and it would work.
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.