You are correct, fish do not have tails. We call their caudal (anterior) fins "tails" because that has become the accepted terminology for something that juts out an animal's posterior. They do not, however, exactly meet the biological definition of a tail even though it's the tail-end (so to speak) of the fish.
Added: Think about it...where would you be getting a "little tail" with a mermaid?
Fish would only need tails if they swung from trees and trees can't live under water.
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.