Interactive organisational structure of the Communist foreign intelligence service in the years 1969-1989 (Main Directorate of the foreign intelligence of the Ministry of interior, Directorate I of the Ministry of interior, Directorate I of the Federal ministry of interior, Directorate I of the National Security Corps) with references to closer descriptions of individual units (political foreign intelligence, illegal foreign intelligence, science and technology foreign intelligence, active measures) and subordinated structures. The overview includes selected residenturas of Directorate I where the foreign intelligence operated, with brief descriptions of activities in the given country. The information graphics also include a display of the chiefs of Directorate I on a timescale.