End of the Cold War and the fall of the USSR By chenhuisi Mar 23, 1982 Regan's military build up (SDI) Period: Mar 23, 1982 to Oct 11, 1986 Regan's military build up (SDI) Oct 11, 1986 Reykjyavik Summit Dec 15, 1987 INF Treaty Dec 8, 1988 Gorbachev's Speech at the UN Jun 18, 1989 Solidarity wins Polish elections Nov 15, 1989 Fall of Berlin Wall Nov 23, 1990 Union Treaty Aug 18, 1991 August Coup The coup amented Yeltsin's political position, it damaged Gorbachev's credibility beyond repair. This led to political instability which caused the breakaway of baltic states which also in turn cause the USSR's collapse.
