I was a scout way back when and I would say right sleeve, as still today I see Canadian boy scouts with patches demonstrating a centennial do. IN the USA it could be different.
I was a Cub Mistress ( retired now) I think it would be left breast of shirt / sweater.
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.