Bad Blood" is a figure of speech used in English to indicate dislike between two or more people or groups of people; usually because of a past event that happened between them. Ex. Jerry took Bob's last doughnut.
Since then, there has been bad blood between them. (it's usually something a bit more serious than that).
When there is bad blood between 2 people, this means that they know each other but don't like each other, and it goes deep, like blood.
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.