1989 and After This site offers documents and analyses of the decision by Mikael Gorbachev in the Soviet Union to “open” the stultified and un-competitive Soviet Empire to reform. Afterward, he testified that he knew this decision might lead to ungovernable and far-reaching changes, but that change had to come.
http://mars.acnet.wnec.edu/~grempel/courses/wc2/lectures/rev89.html
Questions for further exploration:
What did the era of reform ushered in by Gorbachev seem like to the people of the Soviet Union’s Allies in Europe? What was their response? Did the events of 1989 lead to greater unity in Europe as Gorbachev hoped? What trends suggest that it has; what trends suggest that it has not? What role will the former East Germany and the youth of Europe play in the final outcome?