In this little book of 187 pages, the author sets out to cover all the aspects of psychiatry in modern warfare. It is obviously impossible to do justice to such a subject in so limited space, but the author does, while simply skimming the surface, demonstrate considerable insight in many of the basic problems of modern war. The book has been written for general consumption and begins with a short glossary. The author then presents a general discussion of the psychological causes of warfare. This section is scattered in construction, but the author's basic premise is primarily concerned with the general insecurity of the average child and the usual thwarting of the drive for power in the average man. He states “who, then, can measure the destructive forces latent in the subdued and exploited masses, the repressed sado-masochistic impulses in those who