XSLT Removing duplicates?

For XSLT 1.0 you can use the "Muenchian Method" (creating a key to index the unique dept values).

You haven't shown your desired output. But in XSLT 2.0, you could do something like this.

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.