I wouldn't use W3's tutorial. I'd use simplexml_load_string to load your string into an XML object, then iterate over it like so.
You should use the SimpleXML extension, it is much simpler and easier to work with.
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.