I don't think that Christians that believe and trust the Bible as truth(and the prophecy within the bible), are pro war and pro killing.
The Bible may help us to understand war, and the lack of peace in the world, therefore giving us hope and trust in God. It does not make us want war and conflict in the world. Our faith does not make us condone murder and cruel acts. Our faith helps us to understand how this world works, and helps us to live in this society, Thank you God!