Today every faith has different reasonings and laws when it comes to war. However, most of the faiths may not follow or call it the Just War system their rules are vaguely the same and followed. Both Christians and Judaism’s have rules before they are allowed to go to war, although Jewish law doesn't follow the Just War Theory, they still do follow some of the rules that are included in the Just War Theory like, right intention, proper authority and just cause.
The Christian faith is no longer fully against war, however they do believe in the Just War conditions. Christians have not taken part in war in the past, but now believe that taking part with the right conditions can prevent a injustice against innocent civilians. Although this is