The book is dedicated to one of the most mysterious pages of Russian history of the 20th century - the events that led to the tragedy of 1941. In the past decade, the background of the Great Patriotic War has been at the center of a fierce and overly politicized discussion. If some authors continue to accuse the then Soviet leadership of insufficient preparation for war, then others, with the light hand of V. Suvorov, on the contrary, of preparing an attack on Germany.