Why did Xerxes, Persia's Great King, fail to conquer Athens in 480 B.C.? Why was Philip of Macedon able to succeed in the same venture, only a few generations later? What of the fifteen years Hannibal's Carthaginians spent camped fruitlessly before the gates of Rome, and what brought about the end of the Roman Empire of the West soon thereafter? How did William of Orange rally his people and prevent the Spanish Inquisition from getting a grip on the Netherlands? How shall history assess the sequences of events leading to the French and Russian Revolutions, the two World' Wars, the rise of Red China, and the Cold War? In short, what may we learn from episodes in which circumstances were the masters of men? ?The world seems, literally, ""Coblenz has hardly.to remind us, and""...(from) a about to explode before our eyes, nuclear war, no land has more to gain than from a succession of earthquakes or hurricanes'? What we must do, in this author's view, to lessen the likelihood of worldwide nuclear catastrophe, is to substitute peace training for war training, plan for smaller armies and limited armaments, teach our children to revere the heroes of peace strong, eh the World Court and the United Nations, and ""accept new concepts of world relationships"" so that a spirit of internationalism may prevail in every heart. As a college student, Stanton Coblenz won a prize in a Peace Poem contest. Twenty books, twelve volumes of poetry, and numerous magazine articles later, peace is still the target of his writing. It would be reassuring if we could dare to suppose Ten Crises in Civilization would be taken as seriously in alien capitals as it is likely to be taken here.