On June 12, 1987, Ronald Reagan addressed a crowd of 20,000 people in West Berlin in the shadow of the Berlin Wall. The words he delivered that afternoon would become among the most famous in presidential history. “Mr. Gorbachev, open this gate,” Reagan said. “Mr. Gorbachev, tear down this wall!” Elegant and dramatic, "Tear Down This Wall" is the definitive account of one of the most memorable speeches in recent history and a reminder of the power of a president’s words to change the world.