The author of this book is the Prussian military commander, military historian Karl Philip Gottlieb von Clausewitz (1780-1831), who joined the Russian army in 1812. Being a participant in many wars, Clausewitz devoted a lot of time to the analysis and study of military campaigns. He wrote a number of military-historical works, subsequently combined into the capital work "On the War," which created the author the well-deserved fame of an outstanding military theorist, philosopher of war.