A major study of the collapse of the Soviet Union--showing how Gorbachev's misguided reforms led to its demise "A deeply informed account of how the Soviet Union fell apart."--Rodric Braithwaite, Financial Times "[A] masterly analysis."--Joshua Rubenstein, Wall Street Journal In 1945 the Soviet Union controlled half of Europe and was a founding member of the United Nations. By 1991, it had an army four...