The author is a major Soviet intelligence officer. What caused the Soviet-Finnish armed conflict in the winter of 1939-40? What did Kremlin intelligence do in Sweden during World War II? What secret maneuvers of Moscow forced Helsinki to break the alliance with Hitler's Berlin? Why didn't Finland become a country of "people's democracy" after the collapse of the Hitler Reich? How did Swedish diplomat Raoul Wallenberg disappear into the dungeons of Lubyanka? Answers to these and many other questions regarding the secrets of Stalinist diplomacy in northern Europe in the first half of the 40s can be found in the proposed notes. The book is designed for a wide range of readers.