Books: Also Current: Jan. 29, 1965

THE GREAT DEBATE by Raymond Aron. 265 pages. Doubleday. $4.95.

With lucidity and quiet understatement, the distinguished French pundit sifts the various theories of nuclear deterrence—U.S., Soviet, European—that have transformed the nature of war and diplomacy. In the past, Aron points out, war was simply the last stage of strategy, Clausewitz' "extension of politics." Now, as in the 1962 Cuban confrontation, the great powers are committed to a war of bluff in which strategists insist that the bluff must never be called or war declared. "For the first time in history," writes Aron, "entire...