New book by the famous historian B.Sokolov about the partisan movement as a complex, largely contradictory phenomenon, which has become an integral part of the Second World War. The author considers the features of guerrilla warfare, especially in the Soviet Union, as well as in Europe. The book describes how the Strategy and Tactics guerrillas and their opponents, and political characteristics, social and national -based guerrilla movement. The author has tried to answer the question - to what extent and how the guerrillas influenced the course of the fighting in the various theaters of war.