Ulbricht writes to Khrushchev regarding the closing of the border between east and west Berlin.

Ulbricht speaks at the Moscow Conference of Secretaries of the Central Committees of the Communist and Workers' Parties of Socialist Countries for the Exchange of Opinions on Questions Concerning the Preparation and Conclusion of a German Peace Treaty.

Ambassador Pervukhin sends the views of the Soviet embassy in East Germany regarding the negotiation of a peace treaty between East Germany and the Soviet Union. It notes that "the most difficult issues which will arise after signing a peace treaty are the practical exercise by [the] GDR organs of effective control over the links between West Berlin and the FRG and the establishment of a regime over the movement of the population between West and Democratic Berlin."

Ambassador Pervukhin reports to Russian Foreign Minister Gromyko on the position of the East German government regarding the possibility of a peace treaty between the Soviet Union and East Germany and a resolution to the ambiguous status of Berlin. The report also discusses the possibility of enforcing better border controls between east and west Berlin in order to "close 'the door to the West.'"

Telegram describing discontent of the German population living in East Berlin at the disruption caused by the restrictions imposed on intra-zones travel as a result of the events of 17 June 1953. The telegram recommends actions to be taken to improve the movement of people across the Berlin border.

In March 1953, Moscow had declined Ulbricht’s request for tightening up the sector border in Berlin, then the major loophole in the SED leadership’s efforts to seal off East Germany. In the aftermath of the demonstrations and unrest in Berlin, the SED leadership apparently tried to reintroduce the idea of increased “border security” in Berlin. Eager to salvage whatever was left of its political position as a champion of German unity, Moscow again held such measures as politically “disadvantageous” and “unacceptable.” Certainly, the Kremlin was also aware of the continued widespread resentment among the Berlin and GDR population which made any more restrictive measures a risky undertaking. Instead, the Soviets urged the SED to increase its “fight against hostile elements” in West Berlin—an issue that would become more and more the focus of Soviet attitude on Berlin.

Transcription of a meeting in Moscow between Soviet leader Nikita Khrushchev and East German leader Walter Ulbricht on August 1, 1961. They discuss plans to close the border between East and West Berlin. The document shows Khrushchev’s and Ulbricht’s deliberations about the reasons for sealing the border in Berlin, the timing for sealing the border and some of the difficulties they expected to arise therefrom.

Draft instructions of the Soviet leadership to its representatives in East Germany, advising that the SED requests for East German control of the border with West Germany are "unacceptable and grossly simplistic."

Excerpt from a conversation in which Polish Communist leaders Jozef Cyrankiewicz and Wladyslaw Gomulka remind Walter Ulbricht of how they suggested closing the border between East and West Berlin years before the Berlin Wall was constructed.