Those are automatic flags, which means the HubPages system detects content that is already present somewhere else on the Internet.
This can come from re-using text that you wrote yourself but already have posted somewhere else, it can happen when a user plagiarizes someone's work, or it can happen if you write a Hub that is using a lot of quoted material (excerpts from books , song lyrics, etc).
You either need to fix the content to be totally fresh and unique to that Hub, cut down on the quotes (or increase the unique text in relation to them) or contact admin and have them review the Hub manually if you feel it really is a flag in error.
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.