Seems like it might workout best if you separate Badge into two models. Here's how I'd break it down to achieve the functionality you want. I threw in some named scopes to keep the code that actually does things clean.
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.