Opinions differ as to the exact divisions, but a general consensus is as follows: Short Range 1 - 7 days Medium Range 1 week - 4 weeks Long Range 1 month - 1 year Additionally, "Nowcasting" is common for severe weather analysis covering 0 - 12 hours Climate change studies can cover decade, century and millennia time scales. More.
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.