Here, in less than 100 pages. Mr. Earle strengthens all those who do battle against the the paci, those who are deliberately blind to the peril of the ""wave of the future"" or who accept it as inevitable. In answer to them, Earle says: ""If England falls, the whole world, other than the Western Hemisphere, will be living in one vast blackout of mind and spirit. Perhaps at terrifying costs and by our own unaided efforts we could prevent the great darkness from reaching us, but we cannot afford to take the chance."" Earle is a professor at the Institute of Advanced Learning at Princeton. As an historian he faces the facts, he analyzes the stand taken by statesmen of the past, and from Jefferson takes the title for his book; he marshals ideals and a program to turn the tide of isolationism into channels of all out aid for Britain -- stop Germany now -- meet and overwhelm ""the wave of the future"". One of the most powerful indictments of the appeasers we have seen.