In a speech at the Brandenburg Gate near the Berlin Wall on June 12, 1987, commemorating the 750th anniversary of Berlin, Ronald Reagan challenged Gorbachev (who was then the General Secretary of the Communist Party of the Soviet Union), to tear it down as a symbol of Gorbachev's desire for increasing freedom in the Eastern Bloc. It has been called "The four most famous words of Ronald Reagan's Presidency."
Later on in his speech, President Reagan said, "As I looked out a moment ago from the Reichstag, that embodiment of German unity, I noticed words crudely spray-painted upon the wall, perhaps by a young Berliner, 'This wall will fall. Beliefs become reality.' Yes, across Europe, this wall will fall. For it cannot withstand faith; it cannot withstand truth. The wall cannot withstand freedom."