It could be a flea, an ear infection, a life threatening foxtail (grass awn) or someth8ng else. You need to see a vet about it. The leg twitching could be the dog trying to or wanting to scratch a spot it either can't reach or knows will HURT if it does scratch (maybe the ear).
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.