Your cat is showing a sign of dominance, It's claiming the other cat as it's territory. It's a natural instict to tell the other cats, although you may not own others, to stay away. It's the same thing a dog does when he urinates around the yard- to warn other doggies that the territory is taken and to stay away.
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.