[quoted at Jordon Cooper]

There can only be a community of peace when it does not rest on lies and injustice. Where a community of peace endangers or chokes truth and justice, the community of peace must be broken and battle joined. If the battle is then on both sides really waged for truth and justice, the community of peace, though outwardly destroyed, is made all the deeper and stronger in the battle over this same cause. But should it become clear that one of the combatants is only fighting for his own selfish ends, should even this form of the commuity of peace be broken, there is revealed that reality which is the ultimate and only tolerable ground of any community of peace, the forgiveness of sins.

--- from No Rusty Swords by Dietrich Bonhoeffer