Cold War (1985–1991) reduced some strategic arms unilaterally. Fundamental to the dissolution of the Soviet Union, the Gorbachev policy initiatives of Restructuring ("Perestroika") and Openness ("Glasnost") had ripple effects throughout the Soviet world, including eventually making it impossible to reassert central control over Warsaw Pact member states without resorting to military force. On June 12, 1987, Reagan challenged Gorbachev to go further with his reforms and democratization by tearing down the Berlin Wall. In a speech at the Brandenburg Gate next to the wall, Reagan stated: While the aging communist European leaders kept their states in the grip of "normalization", Gorbachev's reformist policies
Union of Sovereign States confederation. The New Union Treaty () was a draft treaty that would have replaced the 1922 Treaty on the Creation of the USSR and thus would have replaced the Soviet Union with a new entity named the Union of Sovereign States, an attempt of Mikhail Gorbachev to salvage and reform the Soviet Union. A ceremony of the Russian SFSR signing the treaty was scheduled for 20 August 1991, but was prevented by the August Coup a day earlier. The preparation of this treaty was known as the Novo-Ogarevo process (новоогаревский процесс), named after Novo-Ogaryovo, a governmental estate where the work