The Fall of the Soviet Union By SaraStrawberryMan 1988 Gorbachev renounces the Brezhnev Doctrine 1989 Boris Yeltsin is elected to the Congress of People’s Deputies 1989 Collapse of the Berlin Wall 1990 Yeltsin is elected president of the Russian Republic 1991 Gorbachev is placed under house arrest 1991 Bush signed the START treaty at the Moscow Summit 1991 Democratic uprisings and violence erupts in Lithuania and Latvia 1991 Unsuccessful coup against Gorbachev Sep 4, 1991 Secretary of State James Baker articulates five basic principles Dec 25, 1991 Gorbachev resigns