The following XSLT assumes that the xml source is exactly as presented in your question (apart the missing root which makes the source document not well formed). In this case you do not need identity transform. Moreover, if really your account needs only the first next two period you can use a simpler XPath.
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.