The standard barrel of crude oil or other petroleum product (abbreviated bbl) is 42 US gallons (34.972 Imperial gallons or 158.987 L)- In short 158.987 litres of crude oil make 1 barrel. More.
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.