This is an objective survey of the United States' growth as a world power, from the Monroe Doctrine to the Alliance for Progress; its objectivity, in fact, is its keynote and most praiseworthy factor. With particular care for the post-W.W.II period, Mr. ""Carelton reviews each major event (he would not say ""crisis"") in world politics, the background of public opinion against which American policy took shape, and the effect of that policy on the world picture. There has indeed been a revolution in this area, but despite the objective approach, our policy emerges at best as myopically pragmatic and fragmentary. The author evinces a rare understanding of the position of the neutralist and emerging nations, and emphasizes the importance of guessing correctly about world trends. The Cuban situation he handles as a sorry sson in what can happen when we ignore misery and corruption in what we presume to be our own preserves. In general, the facts are permitted to speak for themselves; praise or blame for particular moves are implied by judicious quotation. Concision and breadth are combined here to produce a work which would serve the general reader and the student equally well.