Mike AA.  I have read enough of just war theory in Augustine and Aquinas and more modern writers to discuss it with anyone with an open, intelligent mind.  You yourself would not dare disarm the United States, but without any evidence to support you, you think it is what Jesus required.  Believing that Jesus requires our disarmament, you say you don't have enough faith.   Your self-criticism is misplaced.   It's not that you lack enough faith in Jesus, it's that the Jesus in which you claim to have faith is one of your own making.  Why you would construct such an inauthentic, silly Jesus is beyond me, especially since Church thinkers of much greater power than you have told you there's a duty to protect innocents against unjust attack.  By your lights, you would call it a sin to defend one of your children during a night break-in.  That's morally vacuous.