A foundational treatise on military strategy, presenting a systematic analysis of warfare from the Napoleonic era. In The Art of War, Baron Antoine-Henri de Jomini offers a structured examination of the principles governing military operations, drawing upon his experience and observations during the campaigns of the late eighteenth and early nineteenth centuries. His work seeks to identify the underlying patterns of successful command, emphasising manoeuvre, lines of operation, and the decisive application of force. Jomini's approach is analytical and ordered, presenting warfare as a discipline capable of study and refinement. He distinguishes between the theoretical principles of strategy and their practical execution, providing a framework that has influenced generations of military thinkers and officers. First published in the nineteenth century, this treatise stands alongside the major works of military theory and remains a point of reference in the study of strategy and command. This unabridged edition preserves the complete text, offering a clear presentation of Jomini's system.