Germany and Japan. They would now be under occupation and their entire governments had to be reconfigured. It was easier on Japan because Hirohito remained their figurehead.
He probably lost some of his power but it is difficult to assess how much power he actually had during the war. Japan had a militarist government and when Hirohito decided that he would announce the Japanese surrender, they led an unsuccessful attempt to assassinate him.
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.