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
The Age of Openness Journalist Jonathan Fenby argues that while Dikötter sometimes built his cases on fragile foundations, he nevertheless ""marshals a good case that China in this period was much more vibrant, innovative and open than has been generally supposed."" The Age of Openness The Age of Openness: China Before Mao is a 2008 book by historian Frank Dikötter. It provides an account of the Republican era of Chinese history, spanning from the early 20th century to the Communist Party takeover in 1949. In it, Dikötter describes a period of unprecedented openness during which China was actively pursuing engagement with the world, as