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.

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.

A memorandum for President Nixon from National Security Advisor Henry Kissinger summarizing 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