What is the difference between 'necessity' and 'necessary'?

In Common usage: Necessity is a noun which means 'a thing that is needed'. Necessary is an adjective which means 'needed'. Thus, "necessity" means "necessary thing".

In Philosophy: "Necessary" is an adjective meaning "cannot be otherwise" (as opposed to "Contingent" which means "can possibly be otherwise"). "Necessity" is a noun meaning "something which cannot be otherwise".

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.