The murder rate in Australia is one third of what it is in the USA. I don't know about Germany but you can easily find out with any search engine. It will be lower than in the USA.
Any IS terrorists in western Europe living in say France, Belgium or Denmark can drive a car or take a train into Germany in a day or less. Getting to Australia is much more difficult and expensive. You are more likely to be killed by lightning than by terrorists in Australia or just about anywhere else, except Syria and Iraq.
Https://en.wikipedia.org/wiki/Terrorism_...
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.