We beg to differ. It is a wholly untenable position to hold. Would no sane man or woman knock a criminal on the head with a rock if it meant the saving of lives? Would no country with any claim to a good moral standing not go to war to prevent a tyrant's rule? While violence and war must always be a last resort, it is, sadly, almost exclusively by violence and war that evil is kept in check. It is generally the threat and use of force which keeps people in line. For people will do bad things if they think they can get away with them, and will do so often enough despite the chance of violence against them hanging over their heads. If we approach them with no intention of eventually having to aggressively force them into right behaviors if need be, and they know that, we will soon enough have no stable society worth our participation. We surely will not have peace.
Peace did not end the Holocaust or drive Hitler from power.
Peace did not bring about the end of slavery in the United States.
Peace does not apprehend criminals nor rehabilitate them.
Peace only works among the peace loving. It almost never will turn the heads of those who hate for the sake of hatred, no matter what the treacly entreaties of the peaceniks assert.
Seeing as we live in an imperfect world, one which, quite frankly, shall never be perfect without divine intervention, the price of peace must ultimately be anarchy. At that point, will the Department of Peace flower, or simply become a seed crushed against the ground and bake, exposed, in the sun?
The cost of war is, needless to say, grim. But from the greatest human costs come the greatest things, if properly driven, and without any loss of human dignity. Indeed, I rather believe that our dignity is enhanced when we stand for the greatest things. We stand for nothing when we stand for what will not work.