AxelK

Just my own opinion, but i personally wouldn't write a book just for the sake of writing a book. If you really want to write one, your own desire and knowledge should be sufficient in finding a topic.

This is probably the worst advice you could give. Ignoring things that are uncomfortable and painful is not the way to go at all when dealing with problems. Sadly, as long as history has been recorded there has been war and terror, and that wont change anytime soon. This fact has to be accepted even if it is hard, but in order to regain peace in yourself you need to. Try to stay grounded in your own values and beliefs, whatever the external circumstances are.