I was wondering if we could start a topic devoted to the halacha regarding Jewish warfare. Topics range from Amalek, to regular enemies, to milchemet mitzvah, to treatment of captured/civilians, enemy territory, what is permitted against enemy forces with what limitations in brutality if any, etc. I know little on this topic but would really like to explore it in depth and find out in the Torah how war is really supposed to be fought. All input welcome, please comment in here anyone with knowledge on the subject.