Presidency of Ronald Reagan to forestall the possibility of an agreement between the United States and the Soviet Union. Nonetheless, both Gorbachev and Reagan agreed to continue arms control negotiations at the October 1986 Reykjavík Summit. At the summit, Gorbachev and Reagan closed in on an agreement to greatly reduce or eliminate the nuclear stockpiles of both the U.S. and the Soviet Union over a ten-year period, but the deal collapsed due to disagreements regarding SDI development. Reagan attacked Gorbachev in a 1987 speech delivered in West Berlin, but negotiations continued. Gorbachev and Reagan broke the impasse by agreeing to negotiate separate treaties on
Speeches and debates of Ronald Reagan the Berlin Wall. On June 12, 1987, he gave a speech at the Wall in which he challenged Soviet leader Mikhail Gorbachev to "Tear down this wall!" Reagan's senior staffers objected to the phrase, but Reagan overruled them saying, "I think we'll leave it in." "Tear down this wall!" has been called "The four most famous words of Ronald Reagan's Presidency." Although there is some disagreement over how much influence Reagan's words had on the destruction of the wall, the speech is remembered as an important moment in Cold War history and was listed by "Time" magazine as one of