True, not now. But in the past most wars had a religious component. And most of those wars were between countries of predominately, if not exclusively, Christian beliefs.
Forgot to say that the OT is full of descriptions of God as jealous, angry, etc.
You can moral equivalence Islam and Christianity all you want, but the fact of the matter is that there are hundreds of millions of Muslims who want to see us either living as slaves or dead. What are we supposed to do?