Ifstream constructor accepts a const char as the filename (prior C++11).
First you should check that weather the file is opened or not. For example if you don't have permission to access the file or if you are opening a file in write mode when there is no enough disk space, etc... so.
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.