Find a friend who sews or hire a tailor and have the blue replaced or covered with white. Bleaching will not be a good choice. Bleach will not necessarily turn the blue white and because bleach is wet, it will not stop bleaching where the collar ends and the rest of the shirt begins.
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.