Unless your dog is disabled, I wouldn't recommend using any of these products. The best thing you can do for your dog is walk them. You will exercise their body and mind as well as form a strong bond with them by taking walks.
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.