"Stalin Special Forces" - a series of documentary and fiction books about the special forces of Stalin's times. Not the British "commandos" and not Hitler's "Brandenburgs," but Stalin's saboteurs are rightfully considered the best special forces of the Second World War. The fighters of the legendary OMSBON, who were part of the 4th Directorate of the NKVD-NKGB, could give a hundred points ahead to any special forces - both the enemy and the allies in the anti-Hitler coalition. And the colossal contribution of these "special-purpose heroes" to the transformation of the partisan movement from disparate actions into a nationwide war against the invaders is realized and recognized only now that documents that have been stored under the heading "top secret" have become available for more than half a century.