As far as I remember it was Hanuman ji...he was with Sri Ram and was also there at the jungle when the pandavas were serving their vanvaas.
I think and with the information I have there is only one common character in both Sri Ramayan & The Mahabharata and that happens to be Lord Hanuman.
As I know the only character in both Ramayana n Mahabhartha is Hanuman Ji.
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.