You should have a look in the openair package which has plenty of 'tools' for playing with time series data.
There's a good discussion of this on CrossValidated: http://stats.stackexchange.com/questions/31666/how-can-i-align-synchronize-two-signals . The author of that answer "rolled his own" interpolate-and-resample code.
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.