Genghis Khan (died 1227) was a Mongol general who was probably the most ruthless in all world history. His strategy boiled down to shock, awe, terror, intimidation, genocide, massacre, burning, pillaging, rape, etc. Later historians call his approach "Total War."
DECISION: Is "Total War" a legitimate form of warfare? Should there be "rules" of war? Compare Genghis' acts to the Hebrews, to Caesar, General Sherman, Harry Truman, Andrew Jackson, and Hitler. How do we distinguish against attacks on civilians that are unjust with those which are just?