What are the signs of a possible demonic possesion and/or presence?

There would no signs coming from an un-manifested anything. And BTW, demons are childish nonsense. Worry about real things, it's far more productive..

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.