Multivolume work on the history of World War II - a study that examines all sides and processes, features and characteristic features of the war: its background, origin and development; the goals of the warring parties, the course of hostilities in all theaters and continents; guerrilla movement, anti-fascist struggle and Resistance movement; the level of technical equipment of the armed forces; development of military science, strategy and tactics; economics, politics, and ideology in the countries participating in the war; outcomes, lessons and consequences of the war.