By John M. Grondelski, The Catholic Thing - Let’s situate Catholic just war theory in its proper context. It’s not intended to be merely a “five-step checklist on how to go to war” as much as the principled answer to how one may engage in self-defense, by force if necessary. Just war theory starts with the assumption that war should be avoided. But it also recognizes that, in the real world, bullies are found on national as well as personal levels, and Christians are not obliged to submit to bullying.