To remove all the subviews from any view, you can iterate over the subviews and send each a removeFromSuperview call.
An old question; but as it's the first hit on Google for this I thought I'd also make a note that there's also this method.
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.