There are actually two reasons to cite sources. First, we cannot assess the reliability of your paper unless we know what sources you used, so that we can assess the reliability of your sources. Secondly, if we wish to investigate further, we may wish to go to those sources for further data.
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.