Same pace but it gets quiter quicker Faster in water as water is much less compressible than air. And sound in water retains its volume far better as there is far less heat dissipation due to entropy For the same reasons sound is even faster in solids.
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.