Documents related to East Germany's protest against the intended establishment of a Chinese trade representation in West Berlin. The East German Ministry of Foreign Affairs stresses that West Berlin cannot be regarded as part of West Germany. Therefore, by initiating diplomatic relations with West Berlin without considering the existence of the internationally acknowledged Four Power Agreement on Berlin between the US, Britain, France, and the Soviet Union, China is deliberately acting against the interests of East Germany.

Documents related to East Germany's protest against the intended establishment of a Chinese trade representation in West Berlin. The East German Ministry of Foreign Affairs stresses that West Berlin cannot be regarded as part of West Germany. Therefore, by initiating diplomatic relations with West Berlin without considering the existence of the internationally acknowledged Four Power Agreement on Berlin between the US, Britain, France, and the Soviet Union, China is deliberately acting against the interests of East Germany.

Ronald Reagan's famous speech in which he advises Soviet General Secretary Mikhail Gorbachev to "tear down this wall!"

Huang Zhen and Jerzy Knothe discuss the socialist bloc's foreign policy coordination.

The Ministry of Foreign Affairs of the GDR asks the PRC to comply with the status of West Berlin as part of the GDR.

In this extraordinary conversation, Solidarity’s leader fears the collapse of the Wall would distract West Germany’s attention - and money - to the GDR, at the time when Poland, the trail-blazer to the post-communist era in Eastern Europe, desperately needed both. "Events are moving too fast," Walesa said, and only hours later, the Wall fell, and Kohl had to cut his Poland visit short to scramble back to Berlin, thus proving Walesa’s fear correct.

A memorandum for President Nixon from National Security Advisor Henry Kissinger on the current status of West German Chancellor Willy Brandt's "Ostpolitik" or Eastern Policy, which sought to normalize relations between West Germany and the communist countries.

FEC Directors C. D. Jackson and Whitney Debevoise discuss with State Department officials their ideas on using RFE to pressure the Soviets during the Berlin Crisis

C.D. Jackson, in a personal letter to Allen Dulles, suggests reviving the concept of liberation of Eastern Europe.

This memorandum of conversation between the Head of the Far East Department in the East German Foreign Ministry Liebermann and Chinese Ambassador Peng Guangwei refers to China's intention to establish diplomatic relations with West Berlin. The East German side stresses the fact that countries such as Hungary and Bulgaria also established diplomatic relations with West Berlin taking into considerations the conditions posed by the international law and that China should do the same.