The book by the Secretary of the Central Committee of the All-Russian Socialist Labor Party J. Berec exposes the role of the imperialist powers, primarily the United States, and the internal reaction in the organization (codenamed by the American intelligence services - “Operation Focus”) in 1956 of the counter-revolutionary uprising in Hungary, shows the heroic the struggle of the forces of socialism to defeat the counter-revolution. The book is written on rich factual and archival material. Some documents and materials relating to the events of that period are published as an appendix. Designed for a wide range of readers.