It was recognized that given human kind's sinful nature that there would be wars and armed conflict. Tradition recognizes 7 prime criteria which had to be met. Terrorism uses violence as a first or second means rather than as a last resort. Terrorism uses disproportional means. Over 5400 civilians killed to make a point.
Same people threaten use of weapons of mass destruction including chemical and biological weapons.
Terrorism lacks a declaration of war by a legal government against military targets of its enemies. Terrorism uses the involvement of civilians as its principal weapon. Terrorists certainly would like for their side to win but are not concerned about the futility of their actions. Their goal is not to bring nation states to justice, or to make a more just peace but to create political chaos as a platform for further terrorism. Please pray for our leaders and the world leaders as they pursue justice and stability.