Just War theory helps Christians think about war within a Christian framework. From Augustine to Aquinas to the Reformers, Christian thinkers have generally agreed that for a war to be just, it must meet the following conditions: The cause itself must be just—as well as the intention behind going to war. War must be waged by a legitimate authority. Force used in war must be proportionate to the threat and must not target non-combatants. War must be a last resort, and there must be a reasonable chance of success […]