That's automatic in COM, it takes care of apartment requirements and will marshal the call if the interface pointer has STA affinity. You have to marshal the interface pointer before using it in the thread, ATL has the AtlMarshalPtrInProc() and AtlUnmarshalPtr() helper methods to make that easier. CoMarshalInterThreadInterfaceInStream() or IGlobalInterfaceTable if you want to do it yourself.
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.