Because Russia like every country has the right to do what they see fit for their own national interests. It's a two way street not a one way street.
Cuba was a soviet pet project. It was more about making a statement in America's sphere of influence.
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.