No the two galaxies will be torn asunder as in they will no longer be spiral galaxies and then over the next few billion years they will merge into an elliptical galaxy. There will be no collisions but stars and planets will be thrown out of the new galaxy to roam the universe alone https://www.youtube.com/watch?v=4disyKG7...
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.