In your bootstrapper (i.e. UnityBootstrapper derived class) where you initialize your shell, IEventAggragator is registered with the Unity container during the call to the base class ConfigureContainer method. Therefore if you override ConfigureContainer, you can resolve the event aggregator.
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.