It would be a good fight, but I'd have to bet on the polar bear. The bear would have an advantage of weight and incredible claws. Also, with the bears habitat melting as fast as an ice cube in L.A., he would be pretty pissed off and hungry.
I think that it would depend of the environment. If ther's plenty of things to climb on, the gorilla can easily have the adventage but if there's nothing I thinks the polar bear would win with his claw and his strong jaw.
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.