The collapse of the USSR came as a complete surprise not only to the Soviet people, but also to the enemies of Russia, who considered the Kremlin an “impregnable fortress” that could not be taken by storm - only a long siege. No matter what Western propaganda lies, the red Empire of Good was destroyed not by “defeat in the Cold War”, not by the economic crisis provoked by the “unsustainable arms race”, not even by rampant nationalism - the Soviet government successfully dealt with all these problems for decades. What then killed our Motherland? Why did the indestructible Superpower collapse? Why did the USSR turn out to be a “colossus with feet of clay”? What is the main reason for the damned 1991, which turned into a “Great Geopolitical Catastrophe” and destroyed millions of lives? And isn’t modern Russia facing the same fate? Answering the most painful questions of history, this book reveals the murder of the Soviet Union and unravels the main mystery of the 20th century.