First, nuclear weapons should not be evaluated mainly in terms of what they could do on the battlefield: the decision to introduce them, the way to use them, the targets to use them on, the scale on which to use them, the timing with which to use them, and the com- munications to accompany their use should not be
(or not mainly determined) by how they affect the tactical course of the local war.
Schelling - The Manipulation of Risk
