The left ventricle of the human body contains oxygenated blood. This oxygenated blood is pumped to all parts of the body except the lungs. Hence the left ventricle which has a thick cardiac wall pumps blood through aorta, the main artery, which is the only blood vessel that arises from the left ventricle.
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.