This speech by East German Minister of State Security Mielke is about technological, intellectual, and ideological preparations for war by the west and how to uncover and organize indicators of a potential attack.

This document is a plan for the consultations to take place in Berlin between the Stasi and the KBG. It includes objectives and proposed theses on the subject of early recognition of a sudden nuclear missile attack by the adversary.

This letter, from East German Minister of State Security Mielke to KGB Chairman Chebrikov, requests a consultation on the development and continuation of Complex RYAN, especially on furthering collaboration between the MfS and KGB.

Agreement between the Stasi and KGB outlining the placement of KGB liaison officers and their responsibilities, as well as granting the KGB the right to recruit East German citizens for intelligence work.

1973 agreement between the Stasi and the KGB outlining their cooperative efforts to fight "ideological subversion" and uncover "the hostile plans of the enemy." Both secret services would also exchange information gathered by their espionage activities and provide mutual support in infiltrating agents. Of particular mutual interest was espionage against the Federal Republic of Germany and West Berlin. To this end, the KGB was permitted to recruit East German citizens, and the MfS would secure their ongoing contacts.