An intensive investigation of the field of psychiatry during World War I and after, and army psychiatry in this war. An impressive and significant study, showing how to World War II it was applied to individuals and institutions, not to the masses; the handicaps faced in this war, prejudice levelled against patient and practitioner. The soldier and basic concepts of personality structure, environment and stresses and strains encountered; emotional supports. Psychoneurotio disorders, psychoses; maladjustments and behaviour disorders; the lowest 8%, the mental deficients, homosexuality. Standards of selection of induction and methods of treatment; preventive psychiatry; the social reintegration of the veteran; mental health in the home; how army experience has been related to civilian life,- psychiatry in education, industry, criminology; with again the findings that more need be done in research, in training, for perhaps the least undermanned branch of medicine...The author is Karl Menninger's brother, a psychiatrist of many year's experience. This survey has substantial statistical support.