You can pursue any master's you wish to. However, you will have to inquire about the exact prerequisites required (if any). If you have not completed the prerequisite coursework required for a specific program of study at the master's level, you may have to take the coursework at the undergraduate level first before applying.
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.