If you only require the DI for unit testing you may use the linker to do it.
You can put the dependencies to a c-struct that will become one parameter for the function call. In c this would be similar to the file api where the first parameter is always the file-handle.
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.