Others have already mentioned the XmlReader class for doing the validation, and I won't elaborate further into that.
I would go for the XmlReader with XmlReaderSettings because does not need to load the complete XML in memory. It will be more efficient for big XML files.
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.