The don't really defend themselves so much. Their defence is speed and camoflage (they blen in with many anemities) and other coral to avioid bring eaten but as far as actual defece, they don't really have one.
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.