Contemporary Strategy and the International Political System J. W. Burton: International Relations: A General Theory. (London: Cambridge University Press, 1965. Pp. 288, $7.50.) Sidney Giffin: The Crisis Game: Simulating International Conflict. (Garden City, N.Y.: Doubleday, 1965. Pp. 191, $4.95.) Klaus Knorr: On the Uses of Military Power in the Nuclear Age. (Princeton: Princeton University Press, 1966. Pp. 185, $5.00.) Bernard Brodie: Escalation and the Nuclear Option. (Princeton: Princeton University Press, 1966. Pp. 151, $4.50.) Philip Green: Deadly Logic: The Theory of Nuclear Deterrence. (Columbus: The Ohio State University Press, 1966. Pp. 361, $6.00.)