Theory of international law to the pattern of international relations in the seventeenth-century era of absolute monarchies and how' inapplicable his theory was to the facts of international society of today. Dr. Grob shows how inapplicable to those facts are the philosophical and natural-law definitions of war. More­ over, “ war in the legal sense” or “ war in the sense of international law,” if capable of definition, cannot be defined with assurance we can’t define international law and ascertain its.This book is one of law and of the science of law generally. It is not confined to international law, but analytical jurisprudence too.